Bezos has a very large amount of unallocated capital, which means that if he had a mission, he could move a lot faster on it. Musk has none, in fact, has heavily bet the farm more than once in pursuit of his stated mission. If Bezos has a mission I can not find what it is based on his actions. If I didn't know what Musk's mission was I could make a pretty good stab at it based on his actions so far.