Sure, people would make money if cycling were more popular. Well some would. Others would lose.
Problem is, the winners would not be on a bike. They would be at a sports book bar, getting drunk.
Let's take the most popular sport in the USA, football. Now how many fans can spout off all the stats, tell you who won every game since 1920, and what the perfect play strategy is for any given moment - and how many can see their feet if they stand up and look down?
Applied to cycling, you would have milions of experts on gear ratios, and how to properly charge a hill - talking about why one rider sucks and why one team is using crappy equipment - while they sit on a couch and eat 100 chicken wings.