Being a real hero

There is some few suited up ''real superheroes'' around the world... they dont really do anything and most people see them as a joke, these guys are often random dudes who read or are fascinated by the comic book world, and when they dont ''super''-suit up they are just average joes with no real qualities for crime fighting.

Well okay, that figures... comic books have a certain unrealism, not only to powerhouses like Superman or Hulk, but also to human characters like Batman who we often see do stuff impossible to those without any kind of superhuman power.

But if we ignore this, does anyone think that if a guy with the natural potential went on journey to train, learn and become a human with a peak top notch mental and psysical health, trained in various martial arts, war tactics, guerrilla warfare, profiling, psychology etc. had an arsenal of weapons, body armor and the finansiel resources could become a true superhero? - A hero who would actually make a difference and would actually be able to make a superhero career without getting killed, caught or simply be a huge embarrasing failure?

Ive often thought of what would happend if some kind of ex-special ops/elite soldier turned to crime fighting.

And a whole other thing would be if some guy with the resources ca. of Bill Gates would turn into a villian of some sorts...

No, but honestly, without super-villains, superheroes end up looking kind of like bullies and are kind of redundant. I'm not sure if a real life vigilante would even make a real difference due to the random nature of most crimes; would they be able to get to the scene of a robbery, mugging or other crime in time to stop it? How would they know? It's not like it's legal to install surveillance technology in public venues. A real life "super hero" would end up looking like an embarrassing failure and would probably end up getting killed. They'd probably end up just breaking up random drunken fights or going to jail themselves.

Closest you'd get to it would be a Punisher type vigilante that goes around shooting criminals/drug dealers etc. I doubt that he'd be able to this very long and would get killed/arrested pretty quickly.