Better car? With all this money and influence personalities like that could shape for much better future - livable, walkable cities, public transport, social guarantees.

Private cars in private tunnels for the rich? Is this what we call "achievement"? "There will be no traffic jams in LA because I will be riging my car in private tunnel"?

Rocket's are super cool. Then again a lot of people would argue that instead of aiming for the Mars we should aim to fix Eath's problems - climate, pollution etc.

Depending on how you look, Musk is actually who accomplished far far less. Just made the world better for individualist rich men not much more. Growing up rich and just spending inherited money on expensive stuff might be better for the human race in the end.