All armies and armed forces have thieves in them. In time of war and conflict looting and theft are no stranger. It is easy to jump on the bandwagon and not consider that US and Coalition troops do exactly the same. A minority yes, but think of how much money and gold went astray in Iraq during 2003! Not every soldier, regardless of nationality, is squeaky clean.
http://www.thesun.co.uk/sol/homepage/news/justice/article1057284.ece
http://www.usatoday.com/news/world/iraq/2003-04-23-stealing-usat_x.htm
The difference is that the Russians seem to promote and encourage the behavior rather than punishing it the way civilized countries do.
You seem to be on just about every Georgian thread giving blind support to the Russian side in every argument. Are you a Russian?
The difference is that any US troops caught doing that would be up on charges, and be put away for a good long time. Russian troops and their "irregular" allies will not even be investigated, since such actions are encouraged.