The main difference is legality.
Publishers are legally allowed to stop you from writing a new copy of their content (under certain circumstances, though not including things like TV show recordings) because copyright law allows them to do it, but they are not allowed to stop you from personally giving people around you access (under certain circumstances, but they youd still ban anything that counts as a public performance), because copyright law limits them from doing it.
People are going to justify whatever is legal as morally acceptable, and whatever is illegal as unacceptable.
If copyright law would declare game borrowing to be a form of "piracy", then as far as most people are concerned it would be theft, and if copyright wouldn't be written to extend to online file-sharing, then it would be just that, sharing.
Unlike the possession of physical property, IP is not a thing that exists in nature by it's own right, it is defined by whatever the law declares it to be, and it's lines are drawn by wherever the law chooses to draw them.
Publishers are legally allowed to stop you from writing a new copy of their content (under certain circumstances, though not including things like TV show recordings) because copyright law allows them to do it, but they are not allowed to stop you from personally giving people around you access (under certain circumstances, but they youd still ban anything that counts as a public performance), because copyright law limits them from doing it.
People are going to justify whatever is legal as morally acceptable, and whatever is illegal as unacceptable.
If copyright law would declare game borrowing to be a form of "piracy", then as far as most people are concerned it would be theft, and if copyright wouldn't be written to extend to online file-sharing, then it would be just that, sharing.
Unlike the possession of physical property, IP is not a thing that exists in nature by it's own right, it is defined by whatever the law declares it to be, and it's lines are drawn by wherever the law chooses to draw them.