"he is a uni professor that writes for papers (for money)...they pay him the same whether he is optimistic or pesimistic ... as long as he is RIGHT !"
Key words: "writes papers (for money)" Just because he is a uni professor DOES NOT MAKE HIM RIGHT - I am sure we could dig up plenty of other uni professors with different OPINIONS!
"where does his bias comes to a play connected with profit ?"
In exactly the same way as the RE spruikers you despise so much - pumps his own position for his books etc!