Luis was serving them with great enthusiasm, originally thinking that his sisters-in-law were still young and, not having been stimulated by society, their vanity wouldn't be that strong.
He was showing might not have much effect, but it turned out he was overthinking it; they were no longer children, and he couldn't treat them as such.
Besides, what Blanche said was very true: while the city's best high school was indeed excellent, the culture of comparison was even more severe, even though over half of the students were academic elites.
But honestly, aside from students from humble backgrounds, many of those top students came from well-off families. Their families could afford all sorts of tutors, using money to pile up their grades.
And there were quite a few sponsored students whose grades were a bit lacking, but their families were simply wealthy.
