Why have latin american elites often resisted reforms?

Reduces their power--elites in Latin America control economic and political aspects of society. Reforms would provide more groups with rights, reducing the influence of the elite.

In any country, elites often control the means of production and the political system. Reforms, especially coming from lower classes or oppressed groups, would potentially reduce the power and influence the elite group has. This has been true through many revolutionary movements. 

Ithink it iscommunism?