Yep, if they make it to IPO, as SpaceX has, and if they manage to get into several indexes (as SpaceX is already doing, I assume it's already in the Russell indexes, and will soon be in the Nasdaq 100 index), it'll be a bunch of working class people's retirement accounts holding the bag. And, those same companies might be deemed Too Big To Fail, and they'll get even more working class folks money in the form of tax-funded bailouts.

A wealth transfer from the working class to a handful of billionaires bigger than any the world has ever seen (and the world has seen a lot of wealth transfer from the working class to billionaires).