"Getting" relatively well-off and able to afford what you need, most of the time, does. Getting truly "wealthy" may actually mean you're a thief. But most people in most places here just earn enough money for decent living. They don't get to become "pamepered millioners", but they do get to learn that nobody can be trusted to provide for you. And certainly not government.
(again, that being said, it was the Govt's duty to provide for those people. The fact that we know how "trustworthy" they are does not free them from providing services. The goddamn mayor did not have neither last nor first priorities, he simply announced that every man is for himself.)
Yes, we seem to agree that the people who could get the hell out of dodge would be the most valuable is they were to stay. May be the main lesson of this is that either you do a complete evacuation, forced if needed, or you evacuate no one, and ask (beg?) the people who can stabilize the situation to stay. As you say, you'd be the first man out, on your own car or with friends. It would be wrong for the govt to keep you in. But I guess they coudl ask...