>>Those suggestions don't convery the "effete" quality of ponce

Got it, Anna! "Priss". Though the noun is less commonly used than the adjective.

Sure, william, I remember Lost in Space! "Danger, Will Robinson! Danger!" (robot arms waving wildly)

Barney Fife was quite prissy as well, though without financial aspirations. Also Niles, and Frazier to some extent. And one of The Odd Couple--I think Felix.