It depends how you ski. I am launching some skis soon that shouldn't be used with poles. Most skiboarders don't use poles but they have more sidecut to play with.
I think poles are about the whole "skis pointing across the run, body pointing downhill" notion. I point my body in whatever direction I am heading, and where I'd like to go.. a bit like hangliding or skydiving I'd imagine. Poles to me just get in the way.
The pole plant was initially used to swing the body around when skis were like long tooth picks, and then the Stem Christie turn.
I see them as training wheels myself. I suggest you begin with them and try holding them above your head, in front of you, behind and then see if you need to use them.
If you want to heartcarve you should start to feel centripetal force and it's pull on your body, and just as people generally take for granted their awareness of gravity which they acquire at a young age (and something you'd quickly re-appreciate if you went to space) you need to build up awareness of centripetal acceleration and its effect on your body and heart.
A lot of good ski carvers today are at a point where they could probably ditch poles, but haven't made the leap yet in their mind, that's because they have to unlearn and take a run up. For example, this guy:
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We're at the point I think when getting on fat parabolics from young age will change one's preference for poles and the pole plant. Otherwise it depends on the individual and their general mental/physical agility and disposition if they can ditch poles tomorrow and get a net benefit.