This is a postcard available commercially, as you can see from the backside.
It's supposed to be a visual metaphor, is it not?
Leaders of all sorts come in all types, colors and values. Some are good, some are bad.
Your preferred negative example of a leader might deserve an AVATAR like an ass (or mule?) from the postcard.
Are those entities in the above image...asses (donkeys)? Mules? Horses? Zebras?
Don't ass-ume that you can horse around, walk on zebras and kick ass - it may be hazardous.
"Mules are generally less tolerant towards dogs than horses are.[citation needed] They are also capable of striking out with any of their hooves in any direction, even sideways if needed.[citation needed]
Mules exhibit a higher cognitive intelligence than their parent species - horses and donkeys. This is believed to be the result of hybrid vigour, similar to how mules acquire greater height and endurance than either parent. [8]
Mules are highly intelligent. They tend to be curious by nature. A mule generally will not let the rider put it in harm's way. However, the stereotype of the mule as being stubborn is somewhat unfair and inaccurate."
I hope you know an ass when you see it. I mean a donkey.
But do you know the difference between all of them, especially between a mule and a hinny?
[Can't you go to wikipedia.org by yourself? Why am I doing this?]