I think its a perfectly legit argument, not valid in the instances you use, because it is pointless things, not ones of critcal importance, although, screwing the prom queen isn't a bad idea....

Who would you rather have secure your computer against hackers, a profesional hacker, such as a certified ethical hacker, a goal I hope to eventually reach, or a security profesional?
The security profesional knows what programs and policies to set to secure the computer. The hacker knows how to break into your computer, and therefore, how to fix the hole.

Who would you rather have protect your house against burgaries, like in the show It takes a thief, an ex-theif, or someone who secures homes as a profession, I gotta go at the moment, but if you insist, i will prove my point when I have time.