Why isn't Takamura more famous

This is what I think is the only thing hahime no ippo got wrong even before the hawk fight Takamura should be extremely famous in Japan, After the hawk fight we're talking he's the greatest boxer of our time, after gaining his second belt we're having conversations that he might be GOAT better than Ali maybe. By all accounts Takamura should be living a luxury lifestyle of fame and fortune, but ig it would kinda ruin his character. So I'll let it slide.