The thing about ECC vs. non-ECC. If you don't have ECC, you don't know silent bit corruption is happening, and when it's finally (if it's ever) discovered, there's nothing that can be done. ECC (SECDED) keeps data safer than it would be otherwise.
ECC is necessary for anything real or important based on the financial cost of losing data. For everything else, it can be optional.
Plus, don't forget the security issues of bitsquatting and other attacks that are the real results of silent bitflips.
DEF CON 19 - Artem Dinaburg - Bit-squatting: DNS Hijacking Without Exploitation https://youtu.be/9WcHsT97suU