Images play a pivotal role when selling a real-estate - buyers get a glimpse of their prospective new homes and decide whether they are going to buy it or not. Therefore, there's even more responsibility on the shoulders of real-estate agents if they publish their work on a social networking site that deals mainly with images.
Pushing clients and rush them into a decision has never ever been rewarding. Maybe in the spur of the moment it is, but having unhappy customers on the long run will never satisfy your business.