Ideals are too idealistic

Ideals are based on the assumption that everyone are operating at optimal efficiency.
In the real world, not everyone operates at optimal efficiency.
In the real world, it is about making do with what you have.

Just saying

When to talk and when to shut up?

It's not what you want to say.
It's not what people need to hear.
It's saying what people wants to hear.

More tact. More tact.

More tact is required to proceed.

Found this article which may be helpful. Bookmarking it here:
The Art of Tact and Diplomacy

There is no need to be judgemental

Stupidity is the issue of the individual. There is no need to strain yourself over others' stupidity. Free yourself of your own need to judge others.