It seems to me that many people treat software licences like physical goods in their minds.

The idea of buying a chef's knife from Victorinox for one price if it's to be used to chop vegetables and another if it's to be used to trim fat from steaks is absurd. You buy the knife at the lowest price it's offered and use it however you like.

Software licensing does include the ability to charge different prices for different usage scenarios, but violating those conditions doesn't strike most people as unethical while obtaining the software without paying seems similar to theft.