User blog comment:ThatScrewyDuck/PE Proposal: Babidi/@comment-25305244-20191109213834/@comment-25342388-20191109222325

"Second and most importantly, his resources are different from villains like Frieza, a PE villain, who commands an intergalactic empire and destroy many worlds on a whim."

His resources are actually higher than Frieza's (at least pre-Super) since he has magic that can kill/incapicate Frieza, he is just physically weaker.

"Plus the outcome of his actions by reviving Buu eventually led to the destruction of the Earth, the main setting."

Many villains both before and after Babidi have tried to destroy the Earth, including King Piccolo who definitely has less resources than Babidi.

"Zamazu came after Babidi."

Several villains have been cut due to later villains who were worse.