You're right, I shouldn't've used "never". But that mistake is an experience and people learn from mistakes. Now that person is less likely to make the mistake again.
I mean, the goal of the business is to create value / profit and find people who add value to your organization. Not to judge and suss out people who you discover are capable of making a mistake and saying "AHA! I FOUND YOU! You were an imposter all along not worthy of paying! Time to start from scratch again!"