No it's not. Your profit and loss is determined by how much comes in and goes out of your bank accounts. You should already know how much your revenue and expenses were throughout the year, the 1099 is meant for the company sending them, not you. You can save them if you want, but they are rarely accurate so what's the point?
The IRS has no use for a 1099 and will never request one in an audit - ask any accountant and they'll tell you the same thing. Line 1 on your schedule C is for your "gross receipts", it has nothing to do with what other companies reported that they paid you on your 1099.
You have no obligation to match your numbers with another company. If they fucked up their numbers, or are intentionally misleading the IRS, that's their problem. Just make sure your numbers are accurate, and that you aren't misleading the IRS. I've had 1099's be off by over $50k before and my accountant just laughed and said he's seen worse, and that's why they never look at them. My books are all that matters.
Informational Gunman ftw.