In my many years of experience helping clients with both PCs and Macs, there is definitely a difference of attitude regarding piracy.
PC users, by and large, are barely aware that they ARE pirating. Apart from games, they simply do not understand the concept of paying for software. At all.
Naturally, this attitude then extends to music, movies ... anything digital really.
It's been my experience that most PC users are *appallingly* ignorant of the very CONCEPT of copyright, let alone how it affects them -- with one exception of course: a PC users who actually CREATES SOMETHING. Then suddenly its a HUGE issue ...
Mac users I find are (once they reach a certain age) able to appreciate what goes into making a piece of software or art, and tend to want to pay for what they use. Young people, less so; older people, more so. Maybe its just life experience, or maybe its because most Mac users *are* Mac users because they actually CREATE THINGS OF REAL VALUE, and so they reach that awareness long before your average solitaire-playing housewife.
I used to think that these general observations meant that Mac users were "superior," but over time I've fallen away from that view and more towards the "don't know any better" line of thinking.
I still think Mac users are superior, but for different reasons nowadays.