Even though I don't block ads personally, I think I understand where he's coming from. Basically, he thinks he's not affected by advertising, so showing him ads is a waste of the publisher's/advertiser's money. Indeed, logically if that's true, then it is a waste of resources showing that advert to him, and obviously it's bad for him too, so lose-lose.
Indeed it could be argued that only 'less techie' people respond to ads, and that 'intelligent' people aren't vulnerable to them. I don't 100% agree with that notion, though I can sympathize with those who think that way.