The destroyer curse isn't inevitable, unless that was stated before the 5th ed codex. I've never encountered a source that said that, let alone multiple, so could you provide them please?
They do say that all necrons were driven insane to some degree by the great sleep. However, this is a big range that we can see goes all the way from Anrakyr (completely sane as far as we know) to Nemessor Zandrekh ("cron Quixote").
However, to your original point: no, necron warriors cannot become destroyers. This was actually explicitly covered in the 5th ed codex. Apparently, destroyers actually need some kind of free will, which warriors lack. Most destroyers were immortals and lychguard, and a few converts were deathmarks. Destroyer lords are obviously former nobles, and they are by far the most dangerous due to the degree of intelligence they retained after biotransference.
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