@digitalfirehose, good point and well taken.
Skills and giving/helping definitely can walk hand in hand. When I have some skill set that is of help and service to others, I'm typically quite free with sharing.
The situations I am more specifically examining here is when "Bob" helps "Joe" by mowing his lawn... and then Joe ends up feeling entitled to free moving from Bob while he sits around and drinks beer, purely because "that's less hassle than moving the grass myself." From my vantage point, the only "skill" involved there lies in manipulating Bob (who's kind natured) into mowing the lawn, possibly with a fake sob story for why he needs help.
Appreciate the thoughtful comment!