I’m not so sure about that part.
https://www.britannica.com/topic/conservatism/General-characteristics
“that conservatives reject the optimistic view that human beings can be morally improved through political and social change.”
I’ve seen that view presented elsewhere.
I think their inaction is more dismal in nature: there are the elite like Boris and Kwasi, who were born to do well, and then there are the poor old average people, who cannot and should not be helped…