There are very, very few living billionaire musicians (I can think of only three, maybe four), and most of those few have a vested interest in seeing the industry remain the way it is (because they've built their fortune within it and have become moguls within that industry in their own right; for example Jay Z and Kanye West and Madonna who all have rosters of artists effectively in their employ, using the traditional indentured servant music industry model). And, the definition of "VERY wealthy" looks different in the tech industry than it does in the music industry.

I'd love to be wrong. But, I've been an indie and DIY and punk music fan almost my entire life, and I've worked in the music industry. It's better than it's ever been for independent artists in many regards, but Google and Apple aren't on the side of artists all that much more than the historic record industry was/is, and it's very hard to have them as an adversary. Would you want to try to compete directly with Google or Apple? And, if you were someone with tens of millions of disposable income would you want to risk it on a venture that is likely to fail and if it succeeds won't do much more than pay back your investment capital and a small bit of interest?