To be fair at least he is paying to help all his children unlike on here where you often hear about men not paying to support their children.
With the number he has wouldnt surprise me.
£150k before tax for prime minister job does seem a bit low goven the responsibility you take on.
Plenty of roles on private and public sector paying way over that or close to that and the responsibility is not as great.
My director is on £110k and there are two more levels above him. His responsibilities really don't compare to that of PM.
I woukdnt take on the PM role at that salary it isnt worth the stress or the hours. If you looked at how many hours they do, latr night meetings, emergency meetings etc. Is it worth it? Heck no.