Apparently, none of you people ever had a long series of run-ins with the acerbic Dr. Sagan. He was a shrewd manipulator, I will give him that. But the way he treated others who hoped to enter the scientific community was a blot on the name of science.
You people will soon enough discover that charisma only masks a treacherous individual whom you must not trust. And a seemingly gruff exterior usually conceals a heart of gold.
Until you people get over your hangups about appearances, you will be the victims of treacherous people like Carl Sagan.