In other words, your value-added as a software engineer is significantly higher, as a fraction of the money in a transaction, than the metalworker's. This is b

In other words, your value-added as a software engineer is significantly higher, as a fraction of the money in a transaction, than the metalworker's. This is because of leverage. Implement software that speeds up a process by 20% once, and every time that process is used from then on the speedup adds value. We're lucky to be working in a field that enables us to add a lot of value, for relatively little capital costs, and pocket a good share of the difference.