Not just “rich” people.
Introverts
More intelligent people prefer more quiet
People with pets that don’t like noise
People with babies
I have been bless (cursed) with very acute hearing. Especially at the high end of the scale.
I used to be able to walk past a house and tell if their TV was on not by the volume but by the high pitched whine of the CRT. Probably the reason I never was very fond of TV.
I love silence.