Except it isn’t their money. You and I paid for a portion of their car (sort of) with our taxes. From the web:
“In the third quarter of 2018, the ZEV credits were $52.3 million and the non-ZEV credits were $137.2 million, for a total of $189.4 million [to Tesla]....
But what about the FIT credit? This is the (up to) $7,500 per car that a buyer can deduct from his or her annual U.S. federal tax liability, assuming the person has any such liabilities.”
Its their money, as long as the cars are not subsidized by the government.
We, the taxpayers, are paying for their ego toys.