@PastaSouce It has nothing to do with 'playing the hero'.
'Blind' guy might be a prostitute and conartist, but he obviously started hustling to survive.
He knows the guy he gave the watch to doesn't love him, he knows he's being used, but this way at least he knows where he stands - it's an obvious trade.
Finding true love is impossible for him, because who would want something damaged like him.
In a country where your family and reputation still means everything, being a poor street rat makes you pretty much 'worthless' - in countries like India they will still tell you some nasty bullshit about how you deserve your miserable existence because you did something wrong in your past lives, now bend over and just take it up the a**.
In Korea finding proper employment is without good recommendations and an even better education out of your reach, the Chebol families control huge sections of the economy and society.
If you want a secure government job or be an idol, you better be a nepobaby.
This guy is highly intelligent, he knows how to play the game and how to read people.
Running away isn't as easy as movies make it look like, you can't simply disappear without the right resources and connections.
Gathering evidence and putting that piece of sh** behind bars was so far his best option.