Bitcoin when converted to fiat can be used in corruption. Did you read the news regarding an Indian corrupt police who withdraw the bitcoin they got from the drug dealers they arrested?
https://www.cryptocoinsnews.com/rogue-indian-drug-agent-caught-stealing-bitcoins/He worked with the drug dealers he arrested so that they can got the bitcoins for them. So this leads me to believe that bitcoin can be used and lead to corruption in our society.
That what happened, with drug agent withdrawing the bitcoins that were owned by drug dealers is only an incident.
In my opinion, it should not lead to conclusion that bitcoin can corrupt everyone in the society.
I think that most of the precious thing may lead to bad things, because humans have desires, which they want to make true.
That is why all is up to particular person righteousness and character- if the unit is doing bad things for money, or would not hesitate to- bitcoin may easily lead to corruption.
But if someone is a regular hardworking citizen of some country, why would bitcoins make him corrupted? It is just a different form of money, instead of USD or any fiat, it is a cryptocurrency.