In every office probably only 5% or less people actually get around on bikes, so however the rest of the organizations does, the 5% can follow suite too. There should not be a special rules and precious real estate for a niche/hip market. Moreover, most downtowns now have free transit to go around in the downtown area. If you are commuting by bike, you must be living close by, so yes, please use mass transit. If you are into gentrification to save money then please do not do it at the expense of the others. If it was janitors, custodians and cafeteria workers coming on bike then I would be all for it. When well paid white collar hippies want their own land, I can't support it.
Also, in most of the Unites States, due to weather, a good part of the year is not bike rideable, who do these people get around then?