Goya was said to be mad when he painted this. I disagree. I think he saw more clearly than most how the world is, how most people are, and how malignity, depravity and villainy hold sway.
The faces in the crowd are grotesque. Click on the Google picture and take a good, hard look. They mirror the swirling ugliness within the human psyche. When you see the huge painting full-size, the impact is profound.
Goya was a genius but, like many others, his artistic cleverness and perceptiveness was not appreciated. Those being portrayed so accurately would call him mad, would seek to discredit him, wouldn't they?
We humans have always had difficulty facing the truth about ourselves. That's why 'shooting the messenger' has always been popular.
And that's why we never change!