According to Noah Stephens-Davidowitz
The simulation of quantum systems is an awesome application. I think it gets less hype than it deserves because it just doesn’t sound cool to say “quantum computers can simulate quantum systems.” This fact sounds trivial, boring, and/or esoteric, but it’s simply none of those things. This will likely have huge effects on society via physics, engineering, materials science, molecular biology, etc. Good popular articles about quantum computers should probably focus on this almost entirely.