It's common for helicopter CFIs to spent most of their time doing tours or charter work, and the rest of the time instructing. If you're only a CPL then that limits what you can do, which isn't a big deal for the company but could limit how often you fly, thus limiting your pay. And typically the biggest tour operators, in very touristy areas, require a high number of hours for their pilots, so you want to fly as much as possible if only to accrue hours so you can get a better job.