That is even more remarkable when you consider that the investment bank has 239,831 employees, compared to Facebook's 3,200.

Facebook isn't commenting as it waits out a quiet period ahead of its shares hitting the market. But the scrutiny is something the company should get used to: excessive executive compensation is a surefire way to tick off shareholders and would-be shareholders.

As Fortune senior editor Stephen Gandel points out:

"You can make the case that start-ups have to pay out a higher ratio of their bottom line in pay than a big bank would because they don't make a lot of money. But Facebook isn't your typical start-up. It's bottom line is already $1 billion. What's more, in the year before Google (GOOG) went public back in 2004, the search firm top executives collectively received just $2.2 million in pay. Of course, those guys were set to get a huge payday from IPO, but so is Zuckerberg and Co."

The chart above was compile by Fortune shows Facebook's executive compensation as a percentage of profits when compared with similarly-sized companies.

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