SYCOPHANT [\SIK-uh-fuhnt\] , noun:
1. A person who attempts to win favor by flattering people of wealth or influence; a parasite; a toady.
My Sentence
The failure of some world leaders sometimes is due to the ineptness of their own wisdom to which they rely too much to the circus of sycophants posing as advisers.
Origin:
Sycophant derives from Greek sukophantes, "an accuser (especially a false accuser) or rogue," from sukon, "fig" + phantes, "one who shows," from phainein, "to show."