AMAZON is a relatively fledgling corporation compared to companies like Apple and Microsoft, Toshiba or Samsung.
The company revenues are still invested in expansion of the physical business centers, investor stock options, and employee procurement and benefit packaging.
Corporate taxes are calculated on profit. While non subsumed revenue figures called profit are actually only revenues not yet accounted to planned expenditures.
Sales tax revenues generated by the commerce increases made by Amazon are conveniently forgotten about when less thoughtful analysis is carried out on large scale investments by Bezos, but when it's the good ol boss at Tyson or the BP group, nobody at the Times or CNN seems to notice. Wonder why?