Now that I think about it, there's a surprising amount of missions in GTAV that are for nothing really, the entire Merryweather heist being a massive blue ball moment, all the car collecting missions for Devin Weston, kidnapping D with Lamar and Chop, Hood Safari and The Long Stretch both involving drug deals going wrong (but were fun shootouts at least), Minor Turbulence, Bury the Hatchet since Trevor stops caring about Brad after Ending C despite what happened, and the Molly's death mission Legal Trouble.
Looking up the mission list I realize the whole story of GTAV is super underwhelming, it's basically "three guys do a bunch of busy work for annoying assholes and are sometimes paid, one is hiding a big secret from another that the game forgets about until right near the end, secret gets exposed, Trevor is angry for like the last few missions, they pull a big heist for themselves for once, then Ending C where they kill the annoying assholes, Trevor stops being mad and is all fine now, gang lives happily ever after". Besides little bits here and there of course, like Michael getting in good graces with his family, Franklin getting out of the hood and into business, Trevor killing his Irish rivals and becoming trailer trash Heisenberg, etc. it really just didn't click with me like with previous games' stories.
