Does move mountains mean something illegal or does it mean you can get a minister to get a civil servant to look at something? Because £50K a year will pay for a journalist/PR person who can also eventually get a civil servant to look at a thing. Access isn’t corruption, even if it is unfair.
If you mean form a cohort with other like-minded donors to influence policy, yes. Does it mean tiny favors here and there from time to time? Yes. Does it mean you can expedite yourself into a citizenship? No.