I would argue that the disparity in payroll is keeping Oakland and Tampa from solidifying their status as contenders. The Red Sox can go add Peavy despite his $16 (?) million salary. They can kick the tires on Cliff Lee. The Rays have to take risks on injured relievers, and use internal options. It really emphasizes how astonishingly well run their organizations are. It looks like Pittsburgh is going to join them.
I was talking about the team valuation of players being more than what they are paid. Cano probably won't be very useful at age 40, but he's going to help sell tickets, jerseys, concessions, advertising, and help ratings for ROOT (where they own a majority stake). That all adds to the value he provides on the field. They might even sneak into the playoffs this year. If they pull that off, I don't think paying him $24 million in 2022 will bother them that much. They might not even own the team at that point.
And look who is receiving the compensatory picks for those players. Atlanta and Boston. The big markets are also able to extend QO's to players that small markets could not. The Red Sox can sweep $14 million under the rug. The Yankees offered $14 million to a setup reliever. The Rays aren't going to gamble 1/5th of their payroll on a possible acceptance. Definitely needs to be scraped during the next CBA.