First off, since you didn't post the text (written or pic) this answer might raise your teachs' eyebrow; don't say I didn't warn you.
In my opinion John Proctor's nature is naturally and instincitvely moral, however each action prior to his execution must not be seen as wholly moral or immoral but rather as an expression of the complex nature of a common man, selfish and altruistic at once, cruel and sensitive in sync.