I am looking for a way to describe a business that has sacrificed traditional prestige for effectivity. I understand the most direct antonym is unprestigious, but I'm not sure this word conveys what I'm trying to express.
I have considered the words “humble” and “modest” too, though in a business sense these words have different connotations attached to them, e.g., small-scale, unassuming, unambitious, etc.