The number of people this clever or more doing good in the world is enormous, but their exploits largely go unnoticed and unheralded. Because things going well can often be difficult to differentiate from a non-event. Think about all of the sophisticated technology behind something as common as smartphone. Or, just think about the clever folks working on, say, the linux kernel. Other than Linus most of those people are not famous and a great many people who use linux every day don't even realize they are doing so or know anyone involved with the project, even Linus (such as android phone users, anyone who uses a website or service hosted on linux, people who use devices running linux in the firmware, etc.)