That may be the case, but I think the point still stands. A lot of people can respect their partner spending 10 hours a day to get money to contribute to a collective future but not respect them for spending it on a hedonistic pleasure they don't share
This is counterfactual: the GP describes someone who was unemployed. We have no particular reason to believe that an unemployed video-game-addicted investment banker would fare any better than an unemployed video-game-addicted not-investment banker.
Why are you comparing a career to entertainment?
Because to an alien looking down, they would just see a human sitting in front of a screen for 14 hours.
If he was an investment banker he wouldn't have been playing video games 14 hours a day.
He'd be making PowerPoint decks nobody reads instead.