You can also make higher-quality products that require less support, and then have a smaller number of high-quality well-paid support for the fewer customers who still need it.

... for a higher price.

And we may have a long discussion about "how to engineer software so that it doesn't need as much support". Theoretically, it can be done; practically, we have all been astonished by Ways of the Common User that no one anticipated, plus you always hit the problem with diversity of hardware.

Apple seems to be pretty user friendly, but Apple products are expensive to boot and Apple does not support their OS on non-Apple hardware.

Pretty much no one today builds software with the intention that it doesn't need support. In fact, the entire hybrid-FOSS ecosystem is perversely incentivised towards exactly the opposite. It won't be as hard as people think it will be when we stop cramming features and GUI changes in to appease some manufactured need to sell the new version.

So you're basically arguing that abuse and exploitation is necessary.

As long as the general public contains a certain % of assholes, there will be someone who needs to deal with them and tired of their shit. Not necessarily an IT support person. Perhaps a nurse, a hotel receptionist, a security guard etc.

Maybe there is a financial limit of compensation after which dealing with them stops being a problem - I would certainly personally tolerate an onslaught of assholes for a million dollar salary, at least for a few years - but that limit of compensation may be unrealistic to reach.

I am not sure how an utopia where people stop being assholes to one another could be achieved.