LogFAQs > #982304176

Frieza: Is an intergalactic warlord who has never even had to try in a fight, and transformed multiple times to drop his power level and still continues to just brutalize everybody around him.
Goku: Becomes an ancient alien legend that is unlocked by decades of intense training and an extreme emotional response to his best friend's horrific death before his eyes, becoming the one being in the universe strong enough to defeat Frieza and end his reign of terror.
Dr. Gero: Casually turns a pair of teenagers into cyborgs that make the alien legend that toppled the unbeatable warlord look like an absolute chump. Also created an even stronger android that made them look like infants by comparison, immediately invalidating all the training the super-powerful aliens (who at this point were way stronger than Frieza) did to match 17 and 18's power.
Goten and Trunks: Flew out of their mothers with yellow hair.

And that's just sticking with Z. Super introduced so many characters who were strong enough to stop Frieza at literally any point and just decided not to. Merus was literally a fucking space cop, it was his job.

Or Master Roshi being recruited to the Tournament of Power, a collection of the strongest fighters across multiple universes, and actually contributing.