If you think that there are two kinds of people, honest and not, you may want to read The Honest Truth About Dishonesty: How We Lie to Everyone—Especially Ourselves so you can see how most people are honest most of the time (yeah!) and also “fudge”, just a little, whenever it’s convenient and tempting to do so. People will help themselves to a company pencil — but probably not steal cold cash. They may take a few dollars — but not ransack the till they are supposed to guard. They may explain that their grandmothers died right before an exam — but only if they are failing the class (why not their grandfathers, I wonder…) But what’s remarkable is that people are very sensitive to simple reminders to be honest, especially when delivered right at the moment of temptation.
Many shades of Who’s in Charge, which explores free will, and indeed its author is quoted in this book. A well-told exploration of how honest people can do dishonest deeds.