well actually blackmail, that is not what was being asked.
The question was why you would (might) go for a lower V1 (of a range of possible values) on a wet runway (and some would say dry also), as opposed to a higher V1 (of a range of possible values) on a contaminated runway (that was specified as not slippery).
The question wasn't about weight and V1 reductions; it is only going to confuse the issue, I have been keeping it conceptual to help grasp the concept.