How to be efficent with the amount of free time your given without being an enormous entitled jerkwad:
I too work, and I can almost go a week without playing. Even still if I have more than an hour of playtime I'll gather my friends, or even hop on a speedrun pug in mor dhona.
If I have less than that, then why bother? Another day.
No matter how you slice it, you're still inconveniencing others for the sake of your time and justifying it by "oh i'm so busy busy busy busy" doesn't make you innocent.