You're aware of what a complete cock up he made of his entire time as Foreign Secretary?
You don't get to be King's Scholar at Eton being a buffoon.
OK, so he's a clever buffoon.
No, you get it by hereditary wealth, connections and nepotism.
He has correctly calculated that he doesn't have to actually do good work to become prime minister.
It all starts to make sense when you realise he has no morals and very little interest in the outcome for the country or other people, only for himself.
Not sure how that puts the longer term prospects of the party.