Fuerdai is just a label.
On its own, it carried no derogatory connotations. For people who were either good or bad, they were further classified into superior and inferior. Objectively speaking, compared to the average person, these children of the nouveau riche had the privilege of enjoying better educational resources, therefore turning most of them into the superior kind.
But why do fuerdais have such a bad reputation?
It was only a simple explanation, though. The average person's vice was smaller, perhaps only affecting those around the individual. By comparison, due to the fuerdai having control over more resources, the repercussions would often be more severe once they committed any wrongdoing, descending into an entire series of problems for the society.