I had always thought conservatism had a major populist streak anyway, with railing against "liberal elites".
I'm not sure how any "ism" gains any traction without some populism.
Principles, not politics.
Sure there is some - Reagan as the father of the modern movement... Goldwater...
Cruz was a shining boy... But ALL of that is based on merit. Not popularity.
Which is as it ought to be. Walk the line and you will be a famous Conservative.
Because they are so few and far between.