It sounds like you are experiencing some guilt about the differences in your financial stability compared to your friend who is working hard as a head chef. It's important to recognize that the way our society values certain jobs and industries is not always fair or reflective of the hard work and dedication that individuals put into their work. One way to alleviate some of that guilt might be to give back to your community in ways that help support those who are not as fortunate.
Because there is an inevitable translation step between "customer wants X" and "engineers have to build Y to achieve X". This takes time and is a non-trivial task. I'm an engineer myself and I'm glad there are people between me and the customers. They're there to shield engineers from unnecessary tasks and scope creep. They are the necessary abstraction layer between engineering and business.