The Benefits of Ignorance

"It is difficult to get a man to understand something when his salary depends upon his not understanding it" – Upton Sinclair

This is a great quote. Its true power is recognized when you substitute the word salary for something else we depend on. Could be ego. Could be confidence. Self-esteem, sense of rightness, right to criticize, ect. 

Its power increases when we turn it into a question:

"How does my lack of understanding of this issue benefit me?"

Another version:

"Does my voluntary ignorance in this situation afford me something that I would lose if I faced reality?"