Am I A Stingy Leader?

Bob Goff got me good with this quote this week.  "We determine how much influence we'll have when we decide how available we'll be."  Everyone wants to have impact but not everyone wants to sacrifice their time to achieve it.  How do you discern as a leader how to give your time and not be selfish and also have boundaries?  Here's 6 questions that have helped me and still do.