Ah...that's what he does, yes, or at least how he explained it to me! I admittedly haven't studied much about biker gangs in general, so I wouldn't know what their usual behavior is, but that's what he's described!

[I mean really does he look like he hangs out with delinquents to you]

As for the rest, it's what he's known for - he managed to unite several of the gangs in Japan, actually! He was accepted into Hope's Peak for his leadership skills!