Kawhi actually makes about $4M less than George plus is expiring after this season. That said, do you really want to rent Kawhi for 1 season? I guess if you could trade for him straight up for Paul George, sure, but that will never happen. TOR gave up:
Ingram (a decent fringe all star player)
Gradey Dick (a useful player with some upside)
2-firsts (2031, 2033)
a first round swap (2027, which might net a lottery pick)
and a couple of seconds.
This for a player who has both physical and emotional durability issues.
What is TOR going to get out of Kawhi, one good season? How likely is it that he can go back to back full seasons of being the man? And even if you do get that one good season out of him, then what? Sign him to a max deal at age 36? Line up some "endorsement" deals?