In business you should focus more on how much you can make than on how much you can save.

If you are lucky to have talented staff on your payroll, they should put their hard work into things which increase business revenue and profit, not things which reduce expenses. Unless there's an expense which is outrageous.

If that engineer in the article example can build a Salesforce clone, then he can instead build more valuable software which the business can sell for a profit. It could be a Salesforce clone even.