Who is Mr. J.L.B. Matekoni from Tears of the Giraffe and what is their importance?

Mr. J.L.B. Matekoni is the proprietor of the Tlokweng Road Speedy Motors. He had grown up in Molepolole. He is a mechanic by trade. Matekoni lives in a house near the airfield and prison. He is forty-five years old at the time of his engagement to Mma Ramotswe and is a believer in traditional Botswan values. He is worried about the expense of a diamond engagement ring but is willing to spend whatever he has to to make Mma Ramotswe happy. He is relieved when she selects a small ring that is very affordable. Mr. J.L.B. Matekoni is easily swayed by people and has a difficult time saying no.