If hackers use VPN's how do hackers get caught?

Do you think VPNs are a waste of money than?

Don’t think so, VPNs increase the threshold/resources spent to discover who is behind some actions.

If the case is low profile, no one is going to track a vpn, but if a VPN isn’t used, then it’s easier, and lower profile will be pursued.

Worth remembering that VPNs prevent (or at least make it much more difficult to perform) man-in-the-middle attacks.