And I guarantee you are wrong. Simple as that. If my word alone isn't good enough...

"Another problem is that the technique of vaporizing and inhaling the compound can be a bit tricky. Salvinorin A has a relatively high boiling point and people often don't get it hot enough to remain a gas all the way down into the lungs. Another problem is that so little is used that the vapor often disperses before it gets inhaled. Sometimes people just don't hold the vapor in their lungs long enough for thorough absorption."

http://www.erowid.org/plants/salvia/salvia_info3.shtml

Maybe, maybe you're managing to get it hot enough with a bic or two, but it's still nowhere near as efficient as a torch lighter. By the time the hit even reaches your lungs, most of the vapor is gone.