What's wrong with us workers? Do you think the Apple executes have some secret message board where they ask questions like: "Is it unethical for us to sell iPhones for $800 when they only cost $20 to produce?" Capitalism is what it is, you play the game and shouldn't feel bad the (few!) times you win.
If you're going to make an argument, why make a strawman?
My $1000 iPhone 7+ costs roughly $220 in materials. [1]
Apple's stated gross margins are 39%, and last quarter was a net profit of $17.9b on revenue of $78.4b [2], so that's 22% net profit. So overheads are somewhere around 17%.
To sum up where your $1000 on an iPhone goes:
$220 components
$390 other cost of goods: assembly, transport, packaging, blah, blah.
$170 overheads
$220 net profit
I'm more than happy to allow Apple $220 of profit on my iPhone. You may not, but let's debate that rather than a ridiculous claim that they're only $20 to produce.[1] https://9to5mac.com/2016/09/20/649-iphone-7-estimated-to-cos... [2] https://www.macrumors.com/2017/01/31/q1-2017-results/