A butcher who uses a steel, and they all do, to sharpen their knives, maintain the same angle always. They use the steel several times a day. A knife that has come from a butcher shop will have lost a lot of it's steel up close to the handle where most of the pressure is applied.
A hunter who uses a steel, or for that matter a household cook - male or female - will continuously open the angle and end up with an edge that resembles a splitting maul. It will be round, and require a grind to re-establish the relatively thin factory edge. Also, the more a knife is sharpened, the further toward the back goes the edge, and consequently, the edge becomes much thicker, if the angle is opened to make sharpening fast and easy. I operate a sharpening service for households, restaurants, and hairstylists, and I've seen it all.
I carry a small flat Gerber steel when I hunt to touch up an edge that has run hard down a bone and taken away that shaving edge. But I use my 6 x 48 belt grinder to get my angles back, and then water stones and finally leather strop charged with French rouge. The steel is just a temporary measure, but indispensable.