Would you really make choices that up the DC?
I mean, it's pretty much shooting yourself in the foot, everyone should realize that. The benefits would have to be pretty huge for me to consider them, other than doing it for shits and giggles.
Maybe something more interesting can be done if it affects others instead of you. Like the minor civs. Or other playthroughs through some meta-game magic. Or even other players that choose to take on a sort of light vs. darkness mode that is affected by the choices the community makes.