A large dispenser that is refilled I'm more than happy with. That's what I do at home with those products that I can buy refills for.
In a hotel room if for instance they provided 300ml dispensers, such that you would find in the hotels public bathrooms, I would be perfectly fine with that.
You don't go into a washroom and take the large bottle of handwash or lotion with you do you so why should you feel that you should take the large ones in the hotel room?
It is a mindset change, but if the toiletries in hotels weren't packaged and treated as giveaway items that could hopefully at least go someway in reducing the wastage...
...oh to live in an ideal world