You might ship faster but this can easily lead to poorly written, hard to maintain and insecure spaghetti code. In fact, rushing to ship / meet deadlines is probably responsible for most of the vulnerabilities in software.
Shipping quickly is important but it's also important to write quality code. Small bugs that can easily be fixed are fine but security problems or bugs related to payments, for example, are not.
These are not figures you want to see on your bottom line.
I think the unspoken secret here is the probability*loss for security issues is far less than the cost of missing features / delays.