We used to have a vet who was not the least expensive, but I thought he was VERY good. He also did a lot work in other countries, like a "vets without borders" kind of thing.There is a not-for-profit animal hospital about 20 miles from me
I remember him telling me about one village in an African country he visited. He was teaching the people basic care for their cows, like how to handle a breech birth or a calf that wouldn't nurse. He went back the next year, and they were thrilled to tell him that their live birth rate had gone up 30%. This was a direct positive impact on their life, as their animals were their goods and wealth.
He also started a reduced cost/free, mobile spay-neuter clinic that went around the area in a huge converted motor home. I saw him at the gas station, filling that beast, and the cost at the pump made me gag.
He gave a lot back.