While perhaps a decent idea in the abstract, this can quickly become a problem when such things become regular and unpredictable demands. For instance, a community group in Chicago recently chased away a proposed museum by demanding an extra 5% gross receipts tax. In addition to any normal taxes that might apply.
It can lead to really absurd situations. Another example is housing in SF, where some community groups routinely protest against large developments that are 40% subsidized housing on the basis that they're not 100% subsidized housing. Therefore, the logic runs, they should be stopped and a parking lot preserved.
I suppose I'm saying it's easy to get carried away on what "some social responsibility" means. And that unreliability and unpredictability are major problems for businesses.
They're primarily concerned about making profits for the shareholders of the company leading the project, aren't they?
No one is building shopping centres with the primary aim to give great shopping experiences - ensure shoppers have places to sit, etc. - that may become a part of the project if it aligns with making profit but if it's better not to have benches because you want people to shop and get out the way then you'll ditch the benches.
I'm quite happy with demanding some social responsibility on big real estate developers - like fund a homeless shelter for 20 residents for the duration that the shopping centre is open.