You are not necessarily a good student these days if a university offers you a scholarship. You could in fact be an awful student who has failed every exam you have ever taken.
Some universities are so crooked they will seek out these failed students and offer them such scholarships using money from their tuition fees.
Uniersties are supposed to tailor their fees to the quality of their degree so using fees in this way is a form of misselling.
Universities doing this may one day face legal action from students who feel they have bee missold a degree.