You can google for "advertising fraud precedent" "advertising fraud case law" and "advertising fraud case studies" for more information.
Yeah, OK. But here's what happens if a company gets publicly caught. "At ConCo we take ethics seriously. The statements by the employees in question are not in line with ConCo's policies and practices. Those employees will be burned alive, then put on a personal improvement plan, and then their heads will be displayed on pikes at their respective places of employment."
I suppose you think that current norms for these punishments are too lax. It's not easy to tell what you actually believe though. If you want to tease out your own actual beliefs on this, look up some advertising fraud cases and find one that was punished too loosely, and find one that was punished too severely.
There is no such thing as truth in advertising. There is only a Make Lawyers Rich lawsuit..
To argue against your theoretical case: If there is a data plan that advertises unlimited data without giving any fine print describing the throttling behavior, or other strange details after high data usage, then yes, they should be able to have false advertising claims pressed against them successfully.
The USDA's minimum for "free range" labeling for example for non-certified organic foods can be met with a standard chicken coop with a door and a few feet of screened in porch the chickens may or may not ever actually use. "No Hormones" on the other hand has the technical definition and the layman definition aligned, but is federally mandated anyway making it a meaningless feature.
https://www.thebalancesmb.com/what-does-free-range-really-me...
It's this kind of of nonsense that led me to consider all marketing messages and claims to be lies by default.
I guess I would clarify what you mean by deception. One of the key parts of sales, at least when it comes to technical sales, is that an answer to a question or a presentation of capabilities needs to be made in a context. You have to know your audience. When you're talking about how your software does authentication it's absolutely appropriate to describe it as "integrating into your existing investments in authentication" when speaking to the business side of the audience. This is compared to going into detail (e.g. NTLM, Basic, SAML, Kerberos, OIDC, JWT, whatever) when speaking to the technical side of the audience. Is the generic answer to the business side deceptive? I don't see how it is. It's not their role to analyze the technical merits. They just want to know how much extra work will it require, in general, to deploy the software.
Is outright lying necessary? No. I've only been on the sales (technical sales, but nonetheless sales) side of the world for 1.5 years, but no, you don't. I am fortunate that my manager has carved out a team where the _expectation_ is that we are technical stewards of our customers. Obviously our end goal is selling software, but the immediate goal is to make the software work. It's a norm on our team that it's entirely acceptable to join a call and tell the customer that a competitor would be better suited for the use case.
While it's not necessary, it is hard. The incentives for sales aren't aligned with telling the truth. But this is where culture matters quite a bit.
I'm not okay with saying these situations are unavoidable, but I think they arise pretty naturally out of situations where people are paid to make a sale, and people hear what they want to hear.
This would be hard to prove beyond existing rules, and what would you do about opinionated statements?
I want to prevent consumer pain due to bad sales practices, but I also appreciate that the burden of proof required means that it would be harder for someone to sue me into bankruptcy for speaking my mind at some point.
"Anything anyone says to a customer must be true" is difficult. "Anything the consumer signs must be true" is a much better, and easier to enforce method in my opinion. There's a long way to go on plain language there (and people can and have already tested enforceability) but it's a much clearer standard. (Not a lawyer, just a citizen)
But couldn't we have a standard where literally anything anyone says to a customer must be true, or was not false to the knowledge of the person saying it? Scammy warranties, timeshares, and other "gotcha" products would be a thing of the past. To make money, providing honest value with a product that matches the expectation of the customer would be required.
In these situations, cruise lines will of course lose money in the short term. But the alternative is that we accept the risk to human life to people taking these cruises, all in the name of short-term capital gain. What if instead we had to either "eat the loss", or invest in true safety (we can take 50% of normal passenger load, add these safety measures, these cleaning routines, etc).