Well, there were a couple of things that made me think of it as a viable question.
First, he has a Chinese lackey who goes by the name, "Heyboy". Granted, the character seems to enjoy that moniker, but you've got to figure that he's also got, you know, an actual name. (Oh, the 1950s...)
Second, he kisses a maid forcibly after she threatens his life, then smacks her rear as she's leaving the room.
Third, while he's courtly with some upper-class women, there is also the suggestion that he engages in premarital relations with some, such as June Lockheart's lonely doctor.
Fourth, he's not embedded in any hierarchy. He's not in a church. He's not in the military. He's the lone employee of his business.
Fifth, he seems to have mad skills: knowledge, bluff, intimidate, gather information, search, etc.
Sixth, he doesn't report all crimes to the relevant authorities.
In short, he strikes me as a Rogue, not a Paladin.