It is the license to use the product that needs to paid for, not the binary data that its made of.
Someone once downloaded a cracked version of a software product that I asked him to buy a license for my use. I used it for ages, without knowing anything until I tried to upgrade it. The software vendor then told me that I was using a cracked version.
It was hard to explain how a monk came to be using illegal software —
Fortunately, he understood and donated a license to me because I had been helpful in the product's support forums.
It is not the same as the ethics of purchasing meat. Killing animals is wrong action and earning a living by selling meat is wrong livelihood according to Buddhism, but its not illegal, so buying meat is not the same as buying stolen goods at cut-down prices, or getting illegal downloads for free.