Well to go for the banking analogy.
What puzzles me in this analogy is this: Why do I have to close my account in the end (Free, Destroy) if I still have money on the account?
What will happen with my money (created object) then?
The money is less important in that case, but yes its gone for good. (i.e. inaccessible)
But the bank only has a certain amount of accounts (They need physical space to store each account). So evtl, the bank is full, and you can no longer open new accounts.
Besides that, it's good practice to be tidy, help the bank to be tidy too, and get rid of unused accounts.