(1) I am wrong from the beginning, my league is an exception. In most of the teams, SG and SF score more than PG.
(3) Effectively, PG is the most important position and you should pay one third of your salaries to your PG.
The fact that a role in the starting five is to dribble and pass doen't mean he can't shot (stephen curry, Russel Westbrok, and on and on)And does it make them more important players to their teams? Well, YES!