I don’t know which country you’re from, but in the US, there is a very good reason they no longer pay people for blood donations. They used to. But, they found that having it be donation based plays on people’s guilt, and they are far more likely to donate when they feel guilty or empathetic or like a hero or whatever emotion gets you up and out to the donation center.

On the other hand, when they pay you for it, people tend to ignore it, because the average person doesn’t really need the money, and since it has become a business transaction, they don’t have to feel guilty about not participating. Donation rates are much higher when the donors aren’t paid. They don’t lack funds; they lack donors, and this was a quick, easy solution to the problem.