ggibby, I know that Kilts are to have pleats and lots of them. Like you said a wrap around is a skirt. A Kilt is a Kilt and a skirt is a skirt.
As for the exposure that you might be getting working in a Kilt with the pleats and all, well there are a few things one could do. You could ask your co-workers if they are conserned about you in a Kilt and the odd time you might show off the good. You could wear an undergarmet if you are really worried about the whole thing, I personally wouldn't wear any but that's just me. As far as the pleats and movement it is all a matter of getting use to it I think. The more you wear your Kilt in a everyday enviroment the better you get at not showing the world your stuff, unless you want the world to see and then you just do a few twirls and there you are!
I personally wear Bear Kilts and I have a 8 yard and a 4 yard. I find the 8 yard a little lumpy if I don't sweep the pleats as I sit down and the 4 yard I don't have as many pleats so less lumps. Like I said you get use to what you are wearing. I also found wearing a heavy sporran helps with keeping the goods hidden.