You're right in principle, but by this comment strike me as someone who hasn't fielded a lot of cold calls from recruiters. Cold calling is fine. Boiler room hard sales tactics on the other hand aren't. Recruiting as I see it practiced in the real world is pure inside sales, rewarding mostly the kind of people who specialize in being hard to get off the phone.

They're the only people I've had to literally hang the phone up on in the last 12 months, and we get debt collection calls for the former owner of our house every other day.