The idea of one being multiple times more valuable due to their market is in direct conflict with the idea of “a person can only make so much”.

Yeah, I am arguing against their belief by showing a contradiction with an obvious truths such as that things have intrinsic value and people can increase said value by much more than others. That is what arguing is. If you think disagreeing with people is straw-maning them, then there is no point for me to waste my time with you.