Plenty of people on here own their own company from comments I've read in the past and images of cars (and bikes obviously) gives indication of a few quid in the bank.
Are we talking net worth in £s or how many people answer to you?
My position menas that cops, private security and council workers answer to me but it's not a very senior position really, just one of statutory coordination to make sure everyone is playing nicely with each other.
IMHO, I'd say anyone who saves lives or actually makes the fabric of society move smoothly to benefit other people are the most important like nurses or the RAF guys airlifting people out of the floods.
(that should put the cat amoung the pigeons for all the public sector bashers out there!)