Taxes run deeper than corporate income or individual ... I guess I think more about these other avenues because I focus in State & Local and not solely Federal.
Apple's gross revenues are primarily derived from the sale of a tangible good, being their products sold through retail outlets. If they sell a Macbook Pro for $2,000, the consumer pays sales tax on that, being the rate of the local jurisdiction of the purchase (or residency of consumer).
If you took their gross retail revenues and multiplied them by the weighted effective sales tax rate in the United States, that's a LOT of money derived just from the sale of watches alone. Hell, I'm just one middle of the road Apple Watch customer and DC derived $40 of sales tax off of my order alone. Weren't there roughly 2M pre-orders? Even if we assume an average sales tax of $20, which is half of mine if all inventory had been allocated domestically, that's $40,000,000 in domestic tax revenue.
Not sure about you, but as an American, I'd rather see that invested into our country. Although not going directly into the coffers of the IRS, that average tax times however many domestic pre-orders were placed is great for the United States.