It is true that contribution can often seem intangible. However, if you lower the cost of goods, or increase productivity in any way, you have helped large numb

It is true that contribution can often seem intangible. However, if you lower the cost of goods, or increase productivity in any way, you have helped large numbers of people. Repeat that for 20 years and you have probably helped a few million, or if you are lucky a few hundred million people.