They are influental yeah, they hold their rackets in their area which they control. Most of the times in Moscow these groups are either paying up to a larger Russian crime group or to a Vor V Zakone, that stands for them.

In the 90's, Orekhovskaya had a hitman nicknamed Soldat - he was responsible for various murders of gang bosses done. There is info that he sat in prison first of all in when he tried to stop bank robbers in a robbery they performed, the police were also involved in it, so they made the blame on him. After coming out of prison, he started to work in the local market. There his girlfriend was picked on by the Uzbek gang that controlled the market. It all went to the thing that Soldat got beaten up and told by the Uzbeks to bring them ten thousand dollars or he would die. In prison he had become friends with a high ranking member of Orekhovskaya. So, he decided to go to them and become a criminal working for them in exchange for protection from the Uzbeks. Eventually the Uzbek gang leader came and apologized to his girlfriend on his knee's with flowers in his hands.

This shows that larger crime groups in Moscow have control over smaller. On the other hand in south cities of Russia where there's a majority of one such nationality for example like Uzbeks, they'll be a dominant force there. As well that would happen in Uzbekistan.

I also know that in smaller cities of Russia, groups usually don't divide by ethnicity, for example if there's 10 guys who have been in the same school since first class and they all turn to crime later because they're good friends, they'll be all criminal, even if there's like one of the is Russian, another is a Chechen and somebody's an Uzbek in the gang.

The most influental criminals in Moscow are Russians, then comes Georgians and then you could put up Chechens there. It's very rare nowdays that criminal groups would go in war with each other over ethnical feud's, it's not the 90's anymore. They work together to earn more money or they don't work together and kill each other.