[1958325146]

If you expected most billionaires to get into rocketry, you would expect there to be hundreds or thousands of rocket companies given the more than 2000 billionaires around.

[Rebelgecko]

Not all of the NewSpace billionaires are working on launch vehicles (eg Bigelow). But probably several percent of billionaires in the US have space companies

[7e]

Most billionaires don't get into rocketry, but exceptional wealth is a requirement. Other billionaires do other ego trips.