Define "impact on the world". Facebook has massive impact (arguably net-negative). I haven't heard of BASF since 5.25 floppies, though I'm sure they produce some very important things. Did you mean positive impact? Physical impact?
Are you working in a business that buys chemical products for manufacturing? If not, why would you interact with BASF?
This is exactly what the GP was saying: you're looking at B2C companies as if they matter more, when in reality the vast majority of commerce (but not profits) is B2B.
Oh, you know, it's only largest chemical producer in the world. Oh, I'm sure they produce some very important things, but it can't hold a candle to Facebook.