The fallacy of composition is committed when someone asserts that something is true of the whole if it is true of the some part of the whole. This is a dangerous fallacy, and is commonly committed in the context of social classes.
The converse is fallacy of division. It is committed when someone argues that what is true of the whole must be true of the parts that constitute the whole. This fallacy is also commonly committed in the context of social classification.
Curiously, I thought I was committing those very mistakes before. After seeing it with my own eyes, I’m more convinced than ever.
There maybe exceptions, but for the most part, elections bring out the mendicant in most poor people. And it sure is detestable.