Replying to Skier's responsibility?

A couple days ago, i was cruising down a groomer between the bottom of the park and the chair, and just over a roller, there was a dude that had just fallen, sprawled out with his equipment all over the hill. I just barely avoided taking him out as i skied past.

In the lift line, a guy approached me and was like, "what the hell is your problem?!? it is your responsibility to help a fallen skier by grabbing his equipment for him".

I argued that I went out of my way just to not run over his equipment, and that it is kind to help people out with their equipment, but definitely not a skiers responsibility. Any thoughts?