I don't think this is unique to Ramen at all. Burgers should not cost $20-30 for some limp smooshed beef, a burrito should also not be $15-20, and tacos should sure as hell not be $3-5 per tiny taco. It's all bullshit; none of that food is worth that money. But... I suspect it costs that much because people pay that much, and because the cost of every other aspect of service puts pressure on the restaurants to try to push the ceiling of what it's worth.
As a ramen lover, I try to take advantage of value oriented cheaper pricing when it's available.
As a relatively tall active man, I need to pregame restaurants with something more cost effective, and even still need to order 1.5 to 2x what everyone else does in order to feel satiated. (~82kg, 192cm)
At least ramen takes some time to eat. When I go into a standard burger place nowadays, it takes me literally 20 seconds sometimes to finish a $20+ burger, and then I'm just sitting there waiting for people to delicately nibble their way through what is a deeply overrated culinary experience, in many cases. Like c'mon, give me some damn food, I'll go get it myself.