>What is the result if you are both a body builder and a practitioner of a martial art?
Probably something like this.

Keep in mind bodybuilding =/= "enormous raw strength training." Most of the record holders for weightlifting don't look at all like bodybuilders, generally because they aren't. Strength training is great for martial arts. Bodybuilding, not so much because of the inherent focus on aesthetics and the cyclical nature of the bulk and cut phases towards that end.

More strength is always better. The main problem is time. Professional fighters don't necessarily have the time to bulk up as much as they want to. There's only 24 hours in a day.

Raw strength and body building are not synonymous.

As a jujutsuka, I can tell you that the bigger a guy's muscles are, without a proportional increase to his weight or strength, means I can deliver a muscle compressing attack that will cause him more pain. Also, a bigger body is less able to slither around.