Yeah, but in the right context. It works for The Spectre, because he rarely fights, by his nature tends to stay out of human affairs, ans hwen he does fight, it's usually in space or in some other dimension, so no one gets hurt in the crossfire. With Superman, not so much. If he's that powerful, that means that his enemies are that powerful. If he can survive a blast equivalent to the force of one million nuclear explosions, then that means The Parasite and Bizarro and The Atomic Skull should be able to punhc with roughly that amount of force. So, when Superman and one of his enemies fight in the heart of Metropolis, how come the shockwaves don't flatten North America? Doesn't work.