Decency
At the very minimum, people think. People feel. They are real. They exist. They breath, but more importantly than breathing, they are human. They belong to the same great and grand organization that you do: the human race.
I do not know why we call humanity a race. It is not a race, nor a competition. It is cooperative, and we need to remember to help each other.
Of course we all have or had a roommate that is annoying, or turns the thermostat down when you want it warm. They think and feel too.
We need to treat people decently. Join the campaign for decency.