The way i see it,
~photoshop, i wouldnt buy it anyway and just use gimp instead
~ms office, i would buy but openoffice.org is just as good and for free so i use that
~matlab, if i had to buy it i wouldnt and just use the copy on uni computers
so really, the manufacturer hasnt lost out on any pirated software that i have used, because if i didnt get it free then i wouldnt get it.
But here's the thing; if you weren't able to pirate it, what would you do? Either you would buy the software, or you wouldn't. If you really needed it, you'd buy it, simple as that. It's only because the option of pirating is available that you are saying that.