Well, I completely agree with You...Sub-ego persons, I call them Sub - ego or Victims mentality persons they act like well - wishers to everybody, supportive and so on but actually they hardly wait to threw their own poison to everybody's face because "THEIR PROBLEM IS THE GREATEST OF ALL AND BIGGER THEN OTHER PERSONS PROBLEM".
Dante says: "Traitor is every person that in the time of crisis doesn't take side".