A business can care about the consumer but only to make a profit. But they can also just try to make a profit. The bottom line is making money.
It's not black and white.
Generally, yes, a business's purpose is to make money, but there's also that little thing called ethics, that's supposed to distinguish us from - let's say - an ant hill in Africa.
The practice of leveraging your position to charge as much as possible for a service or product is called price skimming, and while some people may think it's debatable whether or not that constitutes actual unethical behaviour, most will probably find it crosses the line.
Simple example: you think you having to pay $5 (or more) for a gallon of gas is fair/appropriate, While the oil companies are raking in more money than they ever have in history?
Oh, and btw: it's not
a merger, it's an aquisition (or purchase, or take-over, or whatever word you prefer)
PS: before anyone starts arguing about that, yes I know the situation with gas prices is more complex than that. The emphasis is on *simple*.