How Do You Win a Fight?

 Is it points?

Do you get a knockout?
Do you get a submission?
Do you get an ippon?

Depends on what you call fighting.
Depends on what you call winning.

I consider being able to walk away safely from an attack on the street winning.
I consider using good judgement to steer away from dangerous situations winning.
I consider using social skills when I can to avoid conflicts as winning.

The best way to beat an MMA fighter is to do MMA better than the person you are fighting.
The best way to beat a boxer is to be a better boxer than the person you box.
The best way  to beat a grappler is to grapple better than they do.

There's a reason why.
They fight according to expectations and rules.
Some things are allowed and some things are not.
Learn the parameters of a game and its rules and you can figure out the clearest path to winning.
Athleticism, ambition, strength, speed, stamina, cunning, strategy are all necessary to be a champion,

Do people learn martial arts to be a champion usually?
Do people learn martial arts out of a desire to compete usually?
If not, then what exactly is the purpose of learning martial arts?

Is it not to defend oneself?
If you were attacked on the street, is anyone following any rules?