Most of Musk’s money comes from astronomical stock valuations. Most of that stock is bought by hedge funds and the financial sector. That money mostly comes from mortgages and loans, which allow the financial sector to capture the land value that could otherwise belong to the people.

So basically land value (which nobody creates through their own labor- its created by a community and should be owned by the community) is vacuumed up by the financial sector, which they throw at tech.

For more on this process, look into Michael Hudson, who accurately forecasted the 08 financial crisis.