Things I've experienced with my or other people's razor's.
1. Even if oiled steel can rust if there is cell rot present or the scales rub on the blade hence removing the oil.
2. Enough silica gel packs can dry out, shrink & crack timber.
3. Timber scales can hold moisture if not thoroughly sealed inside & out.
4. Bathrooms & window sills of bathrooms are generally bad places to leave razors.
5. Never oil razors with oil , eg vegetable oil, that is not specific to preserving steel.