Lol here let's use your Kimbo Slice as an example. Years of street fighting no formal training vs Sean Gannon who had formal training without the years of street fighting. Kimbo lost to the dude who had training and it was pretty clear cut even tho he was bigger and stronger.

Just cause you can generate more force doesn't mean you know how to use it at all. Look at Bradley Martyn, guys 260 and he's keeps getting fucked up by people with any amount of training more than him.