I don't think it's the case that 'posh actors' get more work than others.
Unless you are an enormous name, you never stop auditioning.
If you're doing well, you're a target, nobody's interested in you except how you can be of use to them.
It's well known that actors are lousy writers.
I would still like to go to the moon before I die.
When I meet a couple, I'm always interested to know if they have been together for a long time, or how loyal they are, because I know that will impact on how much I'm prepared to trust them.