* US$1.5 billion in revenue * 18k employees
For a firm like this, the payment probably amounts to a small uptick in a small portion of their IT budget and won't even come close to hurting them (and, frankly, neither would the $10m figure).
It's insane that this is the case and that companies are willing & able to pay ransoms like this, but the hackers were right - the payment is much less than lost business, bad PR, etc. if the actual information had leaked. Such is where we are.