Lyric discussion by dorareever 

I think is about calendar girls, pin-ups, and how their humanity is lost in the perception of the big public.

But there's millions to count you and keep you

I recently realized this line could refer to collecting pin-ups photos or playboy centerfolds.

and also:

Don't let them tell you you're nothing 'Cause you'll change the world pretty girls

could be a reference to those girls seen only as sexual objects but that end up being a symbol of a whole decade or generation.

An error occured.