I can't say if it's a positive or a negative, but, communication becoming instant changed the world more than anything else in history.
Consumerism spread quickly with the advent of marketing goods not just across the entire nation, but the globe. Imagine trying to resist that force. If you're a company and you refuse to sell outside your installed consumer base? You'd be crushed so hard by a company that can market across the world and get their brand global. The sheer magnitude in difference between one guy with a store or two versus someone who sells his goods everywhere.
Imagine trying to resist such a tremendous force. For example. I watch my locally owned super market just tank recently compared to a much bigger store. And, mind you, one of those stores is just locally owned and operated, the other isn't even international or completely across the nation. The bigger market one they're competing against? I'm not going to name names but the difference between this locally owned market and this one that is based in several states? It's so disgustingly unfair.
Now imagine you have a grocery food chain that sells across the whole nation. Across the whole WORLD. You can see this time and time again, barring niche markets, which, are growing in relevancy, in total fairness.
But look at it like this, in simplest terms:
More customers, more profit, better growth. Globalized markets were inevitable.