Harlem, DMC, Timvp have all consistently sought to minimize Green's impact this entire season.
Funny thing is, the guy is starting on this team, and has averaged more minutes than anyone other than Parker in the last month.
So apparently Popovich doesn't share your "dime a dozen, fringe, one of two dozen" sentiments. Otherwise he wouldn't be on the court (for the 4th best record in the entire league by the way).
Lastly he's a character guy; the franchise thrives on this attribute. Please go ahead and list a player around the league making the same amount that you would want right now.