Socialism can be corrupted and has been often throughout history. Many dictators promise to deliver socialism only to provide more of a communist or totalitarian government if anything. Also, even if true socialism was delivered, there are many who fear that their standard of living would decrease. For the (very) wealthy, they are likely not to favor socialism due to the fact that their wealth would be redistributed to those in need. There are probably other reasons why someone may not like socialism, but I'm not sure at the moment. Hopefully this is a good starting point for your assignment or essay. Of course you should look into further research on this topic.