Because he'd be the only player to stay and not go to his hometown where he'd leave for less money. If only Paul George left the Pacers and went to the Lakers where he grew up.
OKC can offer around 5 years, 124 million or something around that range.
Wash or anyone else would be 4 years, 80 million or so.
If he left, it would be for a better TEAM/situation.
How would the Lakers have afforded him?