Pirates copy strings of 1s and 0s. So yes, what they are doing might be ok, depending on your ethics. Most of the time pirates literally don't hurt anyone because they didn't intend to pay money in the first place. And sometimes pirating is even beneficial. So I would reject opinions that regard every instance of piracy as bad.
It's actually quite similar to the second hand market, which is universally regarded as a positive thing(discounting publishers). It's a curious thing.
Well yes I think that might be the thing. Pirates don't steal - they copy, co there is no direct damage to someone. The "copy not steal" thing is the gray area.