In the words of Marie Kondo, "CLEAN UP YOUR CRM!" (I'm pretty sure she said it.)
If your CRM is not sparking joy, then clean it.
Sometimes that means deleting people.
(Collective gasps fill the air.)
Using your marketing emails is the best way to know if someone has left their company. If a contact's email has bounced, that's a good indicator they are no longer at the business.
No one is winning in the world of business based on how much dirty data is in their CRM. Dirty data includes old contact info.