Scott Squires:

When companies underbid it not only affects that company, it affects all other companies and the people who work for them. A company that underbids erodes good companies who are attempting to operate a visual effects company as a real business instead of a lemonade stand. A company that is bidding using actual numbers is now losing business not due to true competition but because a business is choosing to commit long term bankruptcy. A good company can only lose business for so long before they close.

Nailed it.

Nothing worse than getting under bid and losing the job.