It's common to portray government mass surveillance as only dangerous to people who are commiting crimes. That could not be further from the truth. As you say,

It's common to portray government mass surveillance as only dangerous to people who are commiting crimes. That could not be further from the truth. As you say, criminals will already have means to avoid the surveillance. Whereas ordinary people will have their every transaction logged. Then leaked. Then used against them by corrupt local officials and criminals who get access to the information. And that's not even getting into the risks from government policy changes making formerly legal behavior illegal (like, say, abortion in the USA).