"Even if this vast amount of money came into my possession, if I can't be with Jae Hoon, all this is meaningless"
What? Isn't that just being selfish? I know this chapter was a way to let us know how the MC thinks and what are his goals, but it came completely wrong (either that or the translator messed up)
accept all that money so he then could save his brother but if he can't be with him is all meaningless = he is a selfish little shit that would rather wait for his little brother to slowly die in suffering than to save him but be apart from him.