Here is a great story about how AirBNB recognized and rose to the challenge of increasing cloud costs. From the article, the "ability to instantly spin up compute and storage has enabled our teams to move quickly and meet the growing demands of our business. However, the business value this nimbleness affords can quickly be offset by cloud computing costs, unless the organizational capability to efficiently use these resources is developed."
The article continues, "Recognizing we had a problem was the easy part. Deciding what to do proved more challenging. You cannot improve what you do not measure, so we started tracking our monthly 'Cost of Infrastructure'."