This is a tautological claim. Of course with the benefit of hindsight, we can see that the biggest successes were those significantly changed the world... No way!? That's why they're successes! Lots, and lots of examples of people who similarly dreamed of changing the world with BIG ideas that completely failed. The bigger idea, the lower your probability of success, but with a larger potential return (both personal wealth and impact). I've never seen any data to support that your risk adjusted return on big ideas is better than for smaller ideas.
Massive vividness bias here.