On the flip side we Anglo-Saxons (and Germany's descendants in general) also invented a lot of cool stuff: airplanes, trains, cars, tractors, spacecraft, even hot air balloons!
Without a doubt not the only characteristic. Simply a characteristic of these cultures today. e.g. obsession with environment to the degree of actively harming it (opposing nuclear, wind, solar, and geothermal; and dense housing) is primarily an Anglophone concern specifically UK/US/Aus. And those countries are collectively responsible for a lot of innovation.
Seems to be a truth: inventiveness moving to moribund navel-gazing.
The Greeks and Romans probably invented even more useful stuff of modern civilization, the problem is past glory doesn't pay present day bills, unless you're running a museum.
