Crush the Saboteurs!
troggs had 5 top ten hits. And wild thing -which got to no 2 - wasn't even their biggest - it was with a girl like you - which got to number 1. And love is all around (a top 5 hit) is probably even better known than wild thing thanks to wet wet wet. Aslo Anyway that you want me (no 10) was covered by Spiritualised and is one of their best known songs.mmmm, what constitutes a 'hit' is debatable. Procol Harum made zillions of records but really, only Whiter Shade of Pale counts...
Wild Thing (the Troggs) and Steppenwolf's Born to be Wild come to mind. Not exactly what you could call one hit wonders in the same way as The Archies woeful Sugar Sugar but still...could be me not getting this though.
So - definitely NOT a one hit wonder band.
Steppenwolf did loads of stuff other than "born to be wild" as well. Ditto Procol Harum
"one hit wonder" - should really only apply to an artist for whom their hit was their only significant recording