What's the point of being the strongest? That's like asking what's the point of existing? Why do humans bother to breathe? It's what Forte was built for, it was ingrained in his very being.

"Because I am the strongest fighting robot. It's who I am. I know that I'm stronger than Rock, I just need to prove it to the rest of the world." Never mind how many fights he'd already lost. There were always extenuating circumstances, and besides, Rock always ran away without finishing him. That alone made him weaker.