Any Shimano/SRAM/Campag purists in the house?

i have a nice steel italian frame.
it has dura-ace/ultegra on it because i like the shift action and the hoods are comfortable. i don't like the thumb button on campagnolo.

it "goes" properly. i shift the levers and the gears move.

i can't think of a rational reason to not use either a particular frame or groupset because of some irrational idea that certain groupsets shouldn't be used with certain kinds of frame.

cept that buerk on that telly program that put CARBON campy on a hand painted steel old school frame,
you know the one--it was just..wrong.