A corporation isn't a magic shield. The limited liability exists mostly to allow investors to own stock in large enterprises without being exposed to more liability than the value of their shares.

Trump is/was doing multimillion dollar real estate development with outside investor's money, and observing lots of corporate formalities. That's why his businesses could go bankrupt without wiping him out.

If I represent a creditor, I'm not going to care if your chickenshit small business is incorporated or not, particularly if it's just a professional services business like a consultant. I'll just sue you AND your corporation. Besides, most creditors that loan to small businesses demand personal guarantees from the owners.

Just having a corporation won't make you Donald Trump. But it might earn your tax preparer some fees.