It's kind of a moot point, B1G and SEC bottom feeders are unlikely to get get demoted by their conference's big swinging dicks because they ultimately know their place, and will stay with them for less, perhaps MUCH less, when the time comes and they are told they need to do so.
The issue isn't the difference between the money and exposure that will exist between the top and bottom teams in those leagues, but between the bottom feeders of those leagues and the conferences frozen out like the Big 12 and ACC. At least if you are in the P2 you can pretend you are competing while cashing fat checks.
And why would those bottom end B1G and SEC teams need good players and coaches anyway, when their purpose is to be paid to be the Washington Generals of their respective leagues? They already chant S-E-C or roam about on other conference message boards extolling the virtues of Big Ten unity.