Those teams can have Russel Wilson, Sam Darnold, Joe Flacco, Carson Wentz or Justin Fields. Carr hasn't show his ceiling is higher than those guys. 3 of them have Super Bowl championships and don't cost anywhere close in money and take no draft picks.
Wentz didn't start in the playoffs for them though and has been really bad after that season. He's played in as many playoff games as Carr has (1). Wentz has only thrown 4 passes in the playoffs.
I get your point about money and all that but I don't think anyone's going anywhere near Wentz as a starter even if he is cheap.