Who is Mr. Molefelo from The Kalahari Typing School for Men and what is their importance?

Mr. Molefelo contracts the No. 1 Ladies' Detective Agency to locate two different people. When he was young, Molefelo lived with a couple during his time at school. During this same time, he also fell in love with a young nursing student and got her pregnant. Molefelo stole from his host family to pay for this young girl to get an abortion and then he left her. Now he wants to find the host family to repay what he stole, and he wants to make amends with the young girl for leaving her when she needed him most. Mma Ramotswe warns Mr. Molefelo that money cannot always repay such debts, but when she locates each of these people, Mma Ramotswe is able to find a way for money to help each person in a very unique way.