I was coming to make these points, but you covered it very well.

I can think of offices that would implode without the receptionist/assistant/office manager that performs the "glue" functions and allows others to focus on their roles.

I would say telemarketer is not standard sales, its high pressure unwelcome sales tactics that are stressful and harmful to both sides in my opinion, but I wouldn't classify that as "Goon" but as "negative sales techniques"

He seems to vastly misunderstand the actual function and roles hes criticizing.