Light is so awful lol. Doesn't even care about his father's well-being, and is just putting on an act.
So the chief believes Kira is not evil, it's the power to kill that is truly evil? Hmm, perhaps there is some truth to that. When given such immense power, I think many otherwise good people would do absolutely horrid things despite following their ideals.
I don't have any sympathy for Light, nor would I justify his actions at all. Still, despite what he says, picking up the Death Note was indeed a misfortune for him. He would've turned out as a decent person, but instead, great power drew out the most unpleasant qualities lurking inside him. I think I can agree that he's not truly evil.