I think that you are living in a state of denial.
Heaters are not built better, or safer, they have gone in reverse. They are built cheaper, and have a higher failure rate. Not too sure how this makes them safer? Human safe, fish safe? Part of this is due to consumers wanting everything to cost as little as possible, the other reason is due to corporate greed. It's a simple concept, and is why most of the items that used to be manufactured here in NA, are now farmed out overseas. I get it, it's difficult to compete at any level with the Chinese. All the designer/engineer double talk in the world won't change this simple fact. Money talks, BS walks, a concept that has been in place since the inception of mankind.