I used the foundation of a house as an example. Extremely important, provides the base for everything else to be built on, but people who live in the house aren't generally into the particulars as long as it achieves the job. Instead, they spend more time thinking about making a beautiful, functional kitchen, curb appeal and other things that get people more excited. Most developers want to focus on building great apps, not getting caught up in every detail of building, managing, and scaling servers.