It 'ought not' ('to') make any difference. [=(more commonly) it shouldn't make any difference]
Children 'ought not' [='should not'] run near the pool.
If my math is correct, the result 'ought to' be zero.
(..) we don't know about ... There is no point either of us dying here ... do you understand? The way I see it, I saved your life twice now son. I ought to be god to you ... And god giveth, god taketh away. Shit. Fuck. Next time, if you want to shoot somebody ... (..)2015 The Revenant
(..) Weston. Why are they not jumping? It looks like they changed their minds. Smart sons of bitches. Smart ... I ought to be on that boat. You did the right thing. It's time to move. Get up. We're headed out. I'm coming. (..)2015 The Revenant