I don't think that would stop them, sadly, when owned by a corporation.
I think, based on the history of D&D at WotC/Hasbro, there's a very narrow band of existence between "The execs have Big Ideas for D&D! < shark-like grin >" and "We've decided to vault the respected D&D IP for now until conditions are more favourable". Indeed "Make big money or D&D gets it!" was the stick behind 4E's digital subscription-oriented push.
The flipside is that if you want a D&D that isn't owned by a corporation and doesn't have pop culture appeal there are a lot of D&Ds out there like that!