A handful of billionaires now have unprecedented control over banking, the food we eat, the health care we can access and, now, the information we receive.

This is what oligarchy looks like.
@rbreich don't disagree that there's too much control, wealth and power in the hands of too few but instead of oligarchy which is a lot more direct, maybe an oligopoly that has developed over time with governance and regulation becoming less effective, and the people at large becoming disenfranchised.