I have modded pretty much every system I've owned since the original Xbox (Xbox, PS2, PS3, PS4, Xbox 360, Gamecube, Wii, DS, 3DS, Wii-U, Switch, I'm probably forgetting others at the moment). Pretty much all systems except for the Xbox One which I don't own. Even though I've modded all of these systems and have access to thousands of ripped games, I still buy games that I really want. Games that I play from rips usually are 1)roms from older systems or 2)games that I wouldn't have bought or played otherwise. I'm a huge Ratchet and Clank fan, as well as Mario games, God of War, InFamous, and a few other franchises and will buy those games even though I have them ripped to the hard drives of my systems. I buy them to support the developers as well as to have them in my collection.
I'm the same way about movies. I have the ability to rip every blu-ray released and have sources to easily download them. Even though I've downloaded 100's of movies to put on my HTPC servers I still purchase blu-rays and have over 3,000 movies that I've bought displayed on shelves in my media room. I don't have to buy ANY movie if I don't want to, but I love collecting them.
As someone else stated...the only games/movies I feel bad about purchasing are the ones that are bad. I have plenty of bad movies sitting on my shelves!