Because nobody involved is spending their own money. Has never been a problem in my home renovation, I get a contract saying A/C will be installed for certain a

Because nobody involved is spending their own money. Has never been a problem in my home renovation, I get a contract saying A/C will be installed for certain amount of money and if it turns out to be more work than expected, the company has to cover that or I guess return my home to original condition and give me a refund. In bigger corporate projects the shareholders, or bank or insurance company lose money if project bombs and those in charge are fired or penalized. It's fair to say that in big corporations, a company can go bankrupt and CEO can still work away with a bonus. But still, there is choice in becoming an employee, customer or shareholder and people try their best to associate with companies where they don't think that will happen. Tax money and no consequences is on another level.