Unfavorable opinion alert!
Lets say they were publicly traded, and not held for institutions, VCs, and fonders.
Would you as a person, buying Class B shares ever buy enough that the 20 votes per share matter? Why does the number of votes to you matter, unless you sank a few hundred million into the company (at which point, you would be an institution or vc), your votes wouldn't matter with any of the classes.