Worse, while the billions they have can buy them a private island filled with whatever perversions they enjoy they are too poor by an order of magnitude or three to actually finance real space exploration.
It takes unfathomable amounts of time, effort and money to bring in a technology from R&D to the consumer market. "Entrepreneurs" merely privatize the gains in the last step of the process and call themselves a genius.
Space exploration is so far away from commercialization that the private market will not be able to finance any thing past low earth orbit for another generation or three. By then the climate change already locked in would make the world hospitable for Lizard People and put most of our major cities 0.2m below sea level.