the simple rule is, if your not doing a massive crime, reading your data is a waste of government time.
The government determines what a crime is. You might not be worried now because you aren't committing a crime, but by the stroke of a pen you could be.
Second, governments have no problem wasting time and money. That will never impede them. Think of all the time and money wasted on tracking all the phone calls made by people not doing massive crimes.
It is sad that people have to protect themselves from their own governments.
Or when citizens from other countries have to defend themselves from the US. This is terrible. Governments are wasting way too much resources on spying innocent people.