consider it like this: you are not paying the amount of worked hours but for the expertise to judge, coach and guide the AI and its output according to your wishes. so if the result is good and within time and budget, why would you care?
My house also doesnt generate cash flow/interest by itself, must have an intrinsic value of zero. Surprisingly it can be used as collateral for a loan as long as other people assign a (however disputable) value to it.
So, of course you could be right when all (not just you) other people decide that BTC has a value of zero. Meanwhile i use my BTCs as collateral.
Value is more of a social judgment, not a law of nature. Hence the misconception?