LJ is many things, but he's far from selfish.
Kid represents himself and chose to play on his 5th year option to help his team sign big FAs and make big trades like Roquan. Problem is, the Ravens are now a team that gives Team MVPs and the biggest contracts to players they didn't develop. This is what Washington does, and it doesn't sit well for players in the locker room.
Now LJ wants to be paid, and he should be. He's a former league MVP, so it's unheard of that he didn't get his contract last year, but again, he decided to play for the 5th instead of holding in during TC to get a multiyear contract.
Say what we want about him being a RB at QB, the kid is a winner. 45-16 as a starter (8-5 this year).
The Ravens record without Lamar: 8-14 (2-3 including playoffs this year) Flacco had half of those wins LJ's rookie season before he was the starter.
Ravens are a sub 500 team without Lamar, and they're playing a dangerous game of chicken with his contract, acting like it's too much, or they don't need him. The fact is, they do, and the offense was built for him. There is no plug and play here, they are dropping in our division if they don't re-sign him. Then poof, their QB situation goes from having a League MVP to a big fat question mark for the next couple years.