I never said that there was. Believing that a higher power controls your fate does not mean that higher power needs to jump down from the sky and smite your enemies with lightning. But from the perspective of a religious person, faith in a higher power could be the difference between good luck and bad.
He’s not the only one to talk about it. There are plenty of other moments where lines like “if the Saints will it” come up. If you propose your own plan in Sabres and choose “I hope it all goes according to plan” the narration states: “With a bit of luck and a push from the Saints, it just might”, which is the MC’s own internal thoughts. So the belief does seem to be that the Saints have some pull in everyday life.
The other characters just don’t take it to the same extreme as Cazarosta, who believes the Saints dictate our every thought and feeling.
Edit: Also that’s not the only Cazarosta scene where he talks about his beliefs. He mentions it if you talk to him at Wulfram’s gathering/party/celebration thing in Sabres, and choose all the dialogue options.
No offense, but this is a weak analogy. You don’t go to ‘hell’, you stop existing.
Peaceful non-existence > eternal suffering.