Propaganda can also be a label applied to 1) true information presented in a certain way, and 2) the same types of information presented about subjects other than the government.

I’ll leave others to address point 1, but I think point 2 is interesting. Propaganda can be about economic systems, for example, such as capitalism, which exists outside the realm of government. Propaganda can be about industries, for example when the oil industry tries to mislead us about global warming. I think the common theme is that propaganda has to be about broad, powerful systems having, as you pointed out, serious consequences when they tell you something.