I have been skiing with leather shoes until recently! As long as the skis are good and the shoes have some side support you can get down pretty demanding slopes.
This style:
After a few years with alpine gear this brought back the fun of skiing. With interest. Much more ski feeling!
But next week I will go with super forgiving irons with plenty of offset (high plastic shoes and brand new carving skis) - in Steamboat Springs. I had to try them carving skis sooner or later. And getting old and lazy too....