This is not true, there are extremely large number of BTC address that no private key hashes to. If private key (WIF) checksum is wrong, no decent wallet should import it. For instance look at this BTC address:
https://blockchain.info/address/1BitcoinEaterAddressDontSendf59kuEYou can send money to it, but you can never retrieve coins from it. There are thousands of transactions like that in the blockchain.