I believe, strongly, that this reverses the cause and effect. No one wants to be a cog in a dysfunctional machine; and the sheer density of dysfunctional machines in our society has induced a renaissance of individualism. Its a reasonable response; you can't trust the machine to reliably arrive at the correct outcomes, but you can trust yourself.
The biggest reason why I believe so strongly that this cause and effect is reversed correlates toward human nature, which has always angled toward social organization. Some philosophers would argue that there's nothing more fulfilling than being a part of an organization larger than the individual; taking any form from marriage and starting a family, to organized religion, government service, or capitalistic corporations.
Individualism isn't a symptom of maturity; its a symptom of systemic dysfunction.
There are certain very high-paying companies where the above doesn't apply. But they have to pay high salaries to retain staff who _do_ give 100% every day.