Hugo Chavez’s exit from the world stage may take the sting out of an ideological battle that has enveloped in Latin America since a new batch of leftists and Marxist started taking power in South America about 15 years ago to challenge Western Influence. Followers of Chavez say his incredible energy is irreplaceable, but  even before his death the appeal of his boisterous, uncompromising approach to economic and foreign policy had started to fad. The  momentum has moved towards a  more pragmatic…