Jack Bauer and evil

I agree with Rick (BTW, I am hooked on "24" also) that Jack Bauer has used evil means to obtain arguably good ends.  Jack seems to understand that engaging in morally evil conduct has a corrosive effect on his own personhood.  A couple of years ago, (am I remembering this correctly) his daughter Kim was seeing another field agent.  Jack wanted him assigned a desk job not justbecause of the danger involved but also because the negative personality effect.