You didn’t do any of that. You are just a customer at best and don’t provide any additional value on top of the money you pay for the product. Charging less then is just the company shorting itself for a single customer.
I may not be able to stop that, but I certainly don't want to support it.
The incentives of affiliates and principals aren't as fully aligned as might be hoped.
You trying to cut them out. I don't think it's in the sites best interest to offer people like you (cookie killers),a discount. If the affilates find out and they feel cheated they will move on.
Remember the affilate never gives one person at 20% (if they do they never hit their minimum) they give dozen/hundreds/thousands of customers.
EX: Grubhub chnaginging Yelp phone numbers to get an affiliate commission on people looking up a restaurants phone number.
With both of these services, you get to collect the affiliate fee. Some things like insurance are huge and you can easily get £100 for them, most are much smaller.
Lucky I'm not in the UK :)
Keep in mind though that affiliate programs are not necessarily sleazy. By default nobody knows about your product. Some of our partners have been making tutorials in other languages and building API integrations into their products. They deserve the money we send them.
Affiliate systems are the marketing equivalent of gig work. The quality of both product and affiliate are quite variable, but a good product and good affiliate are a strong net positive for society. Again, to use my case as an example, we have API integrations that we wouldn't have otherwise had and video tutorials in languages that we don't speak. Our customers love our product, I'm not ashamed to reward them for talking about it.
If you think every product should sell itself by 100% organic word of mouth... well, that's the rare exception, not the rule. If you're trying to build a business this way, you're in for a rough time.
I go out of my way, with link strippers, cookie removers, adblockers, to the point of often manually copy and pasting links into a private window if necessary, to avoid affiliate links. When I do this I usually feel like I'm supporting the online store, but there are some cases (e.g. I'm looking for an oversized mattress) where I know the whole industry is corrupt and I just want to pay as little rent as possible.