I don't think there is any reason to believe laws against piracy are effective at reducing piracy. I think the people who paid for Russian language software before will continue doing so as long as they can still make the payment.
If office were not legally available from Microsoft, but was legally available from professional "software distributors" (e.g. crackers) with helpdesk services, then there would definitely be large companies buying MS office from the distributors.
Which they very well may not be able to do at the moment.