Working for a company whose products I can be proud of is of paramount importance to me. Such a job requirement is especially important and difficult to come by in a customer service role where I correspond primarily with people who are having trouble with products. Without a personal deeply rooted confidence in the products I support, my job would be a real drag.
Even when THIEL customers call because their speakers are down, most mention how much they enjoy them and how excited they are to get them back up and running. Daily affirmation of our customers' appreciation of what we do is quite uplifting and makes the otherwise daunting work of customer service a pleasure.