Alec is reluctant to get involved with Jorge Hernandez, knowing of his reputation but sees no way out. He's a powerful man who's quite intimidating. Also, he does have the ability to help Alec make some headway in politics which, in turn, will give Alec the opportunity to make a difference, which is his whole motivation for getting into the political game. He wants to make the world a better place.
The reader immediately sees the contrast between the two characters: a 'good vs. evil', which is why Jorge views the 'Greek God' as his nemesis. Unlike himself, Alec has a history of social work and helping people, whereas Jorge Hernandez has a history of intimidating and torturing those who go against him. The two men tend to complement one another, and sometimes it's up to Alec to be the voice of reason, but as the series moves forward, we begin to recognize what we see with all the salt of the earth characters in the series. Eventually, they all start to become like Jorge Hernandez.