If you look at the cases where people are caught spying for non-ideological reasons, they usually have some issues that compromise their judgement. The reward

If you look at the cases where people are caught spying for non-ideological reasons, they usually have some issues that compromise their judgement. The reward vs. risk ratio seems to be way off. You would assume that successful spy would be worth of tens of millions for the risk of spending rest of his/her life in a prison. Usually they settle for smaller sums. They just want to feel important and have a lifestyle and/or feel loved or have sex.