Subject to the clause in s25
25Action intended to prevent sufferingA person shall not be guilty of an offence against this Act or any order made under this Act in respect of any act done for the purpose of preventing suffering by—
(a)an injured or diseased deer; or
(b)by any deer calf, fawn or kid deprived, or about to be deprived, of its mother.
So, S17 cannot result in a prosecution in the case of a wounded deer, since its overruled by S25, you'd only have to demonstrate that you had killed it to prevent suffering.
The drafters specifically made this subject to S25 when they said
17(2)Subject to section 25 of this Act, any person who, without legal right to take or kill deer on any land or without permission from a person having such right, removes any deer carcase from that land shall be guilty of an offence.
No, in theory you might say that there's no way that removing the deer could be for that purpose, however in drafting the law they made it specifically subject to S25, so it must be a reasonable statutory defence