Geez, people have no idea how licenses work...
License is not an ownership - It's limited right to use something. Any action anyone does that isn't covered by license (in software) is called "piracy".
Games were never sold. Mediums were sold with attached licenses. And most of the licenses as early as 2000 contained something like:
"This license is personal to you and may not be assigned, sublicensed, or transferred."
Selling game with such license was just as big of a "violation" as straight copying and giving it out (not having right to do something doesn't equal to crime though, even if some companies,
coughMicrosoft
cough, want you to think otherwise).
The only difference today is that licenses are enforced better. They can be held on license-server and new user can be denied usage after transfering was detected.
But it doesn't matter if it's downloaded, on disc, or embedded on a spoon.
Don't make people believe they ever owned a game. They didn't. You don't own games as well. Never owned them. You rented them.
The only way to get out of it with winning hand is to side with reputable vendor that didn't cheat people out of licenses. Reason why I side with Steam is because I have my licenses intact even though they have 25 years, I know big corps that just make licenses go poof and pretended in never happened.