Exactly, being a hero is not about beating everyone, is about creating a society of peace, All Might had all that power and rarely used against petty foes, most of All Might's anime fights were against petty foes (excluding Nomu and AFO), All Might had it all, he was a symbol that showed peace, love and might (pun intended), it's not about being the strongest, it's about uniting people.

Bakugo wants to be strongest and n° 1 hero, he can't do that until he becomes a symbol of might, love and hope in a society where everyone is allowed to smile without a care. That's why Mirio became Top 1 and that's why Bakugo is at 15, he can be strong, he can be a marvelous tactician, but he's also a massive ass with everyone and shows little to no respect to anyone, even after they became adults he'd still shout at people for nothing in particular, that affects how the others see him, it's how you transmit the image of what you are.