So you help them to hang on to it if that is what they want. To sell your ancestral land under duress on account of a natural disaster to a bunch of wealthy outsiders is horrible. It is remarkable that this even needs to be explained, especially in the context of TFA. If people were going to move out of their own accord already or if this natural disaster has soured them on living there then that's one thing. But to aim to profit of this before the bodies are in the ground and the ashes have cooled is sick to a degree that I don't have any polite terms to describe it. Show some humanity.