I wish I could upvote this a bunch. It will only happen if people being to reflect on their gains at the hands of a specific vendor makes them beholden to that vendor. I know it is an idealism but I often think of statements like "source code or didn't happen" or wonder why people entrust such important things to one company an executive order away from being illegal.
I think the bigger deal for founders is that Nvidia can decide at a whim to deny you supply or, better yet give 100 billion dollars to your competitor.
I guess it's a problem of monopoly, what could or should be done to solve it?