The sandwiches don't really look like this.
No culture can do everything right. Conversely, no culture can do everything wrong, though many would have you believe that America does. At any rate, I can't say that America does sandwiches "right" as many of them are gooey, overloaded with meat, and enormous. That being said, I can say that, in my opinion, Japan definitely does them "wrong". Most of the sandwiches in Japan are more akin to the whitest of white bread with a light spread of something rather than a balance of filling and starchy planes. If the bread is fantastic, this doesn't have to be a bad thing, but most sandwiches aren't made with the best bread in the world. The egg salad is especially disgusting as it tends to be about 50% mayonnaise and spread onto thin slabs of white bread as if it were a precious commodity and therefore must be used sparingly.
I won't miss the lackluster, anemic, and fairly tasteless sandwiches I could get in Tokyo.