Start of my career, 20 years ago, I started a new position at 30k, over 2 years ended up saving company several hundred thousand if not millions per year thank

Start of my career, 20 years ago, I started a new position at 30k, over 2 years ended up saving company several hundred thousand if not millions per year thanks to all the automation I put in place. several million to tens of millions in new sales as well. I was given what was considered a massive and absurd raise to 50k. Which my boss had to fight hard for. Hung out another year, then left due to low wages.