פירוש על עבודה זרה 123:2

It is forbidden to derive any benefit from yayin nesekh. We might have thought that since this is so, wages derived from it are also prohibited. But this is not true with regard to other substances from which one cannot derive benefit, such as orlah (produce during its first three years) and seeds planted in a vineyard. While it is prohibited to derive benefit from such produce, if one did use it to betroth a woman, she is betrothed. This implies that there is value to these things even though they are prohibited.