The reason is simple. They don't 'care'. They don't get rewarded for writing great code. No, it's that an outsourcing company makes money on billable hours. If

The reason is simple. They don't 'care'. They don't get rewarded for writing great code. No, it's that an outsourcing company makes money on billable hours. If you can bill the client for fixing bugs, then why would you care about introducing them in the first place?