Yeah, corporate owners (shareholders) have done phenomenally well since the 1980s, as measured by profit margin. If you would have gone back to the 1960s and told a CEO of a fortune 500 company that the typical large multi-national corporation would average 12%+ profit margins starting in the 1980s he would have laughed at you.
Technological improvements, and the type of businesses that technology has created, have been wonderful for the owner classes, but not so wonderful for the worker and government. If you look at the S&P 500 on a price-to-sales bases, the valuation has never been as stretched as it is today. S&P 500 companies in aggregate are selling less, but technology and resulting stagnant wages have allowed them to keep much more of the revenue from what they sell.
If you compare the peak sales years of GM and Google (adjusted for the 1950s vs 2016 dollar equivalency differences), GM required 5x as many employees than Google to reach their peak sales.
And you are correct in your assertion that the US government is printing about $1 trillion a year just to pay its bills; at some point the tax receipts are going to have to increase dramatically or the spending will have to decrease dramatically.
I personally support the idea that we need worker wages and tax receipts to increase at the expense of corporate profit margins, but in my opinion, the fly in the ointment is that we now have an economy that are so dependent to the stock market (thousands of white collar financial services jobs, 401k/pension plans), that even this transition would be painful....middle class wages would increase, consumer spending would also increase, but the stock market might be 50% lower.