Ok, so pretty much Light is a bit of controversial character when it comes to this category (there have been discussions about it back and forth). But looking back at this, I feel like he's a bit on the amoral side of things and that it's really hard to tell if he's truly a heinous bastard.
For one thing, there's a portion of the story where he completely forgets everything he did with the Death Note and actually becomes a genuine guy, helping L tracking down Kira (who at the time was Kyosuke). He holds no hatred or disgust towards L or anyone else nor is he manipulating or using people as pawns during all of this. Not even Misa, who really was a pawn in his endgame goal. It isn't until he regains the Death Note where he gets back all of his memories and goes back doing his evil things. This tells me that he has a dissociative personality going on.
But what's really grabbing my attention is his reaction towards his father's death. I don't know how it played out in the manga, but in the anime, it looked like he was actually sad about his father dying. Of course, you could say he was faking this reaction, but if that's the case, that's some really good acting. The dude shouted and bursted in tears when his life line dropped. And keep in mind, this was after Light regained his memories with the Death Note (although I forgot how he was able to keep them since he gave up his ownership on the Death Note again).
Ultimately, I'm not sure since he goes back to being the hateful ass he's truly known for, but honestly, that really tells me that Light doesn't have a clear moral agency and that there are two sides of him conflicting with each other; one that actually wants to do heroic deeds in a genuine way and one that really seeks to bring order through gaining power.
Would you say he says or no?