Bezos' ambition is space manufacturing/mining, contrasted with Elon's dream of Mars colonization. It will be interesting to see how that affects the way things play out.
Elon's greatest contribution is to raise the bar for everyone else. I hope Bezos accomplishes great things in space too.
It's highly probable that if the space mining operation succeeds they will be an invaluable supplier for the Mars colonization project. It's much cheaper to transport materials from space to Mars than from Earth to Mars.
I've heard they're having drone delivery problems because of unusual solar flare activity and probable sabotage from the AI running Uber Shuttle as protest against stricter limits on the sorts of cargo that service can carry.
Apparently the solar system government is damage that needs to be routed around.
Elon's greatest contribution is to raise the bar for everyone else. I hope Bezos accomplishes great things in space too.