This has been shown to be incorrect time and again by more studies then anyone can name. To be fair there have been a few questionable studies that say otherwise. Even the same old talking points used for the last 20 years are being used in mark-t post..
While some people do thrive in an office environment most don't, and actually hate them. From Cube farms to open concept they all seem to suck and make you feel like boss is watching every move you make so he can waste time questioning it. (Although I don't get creeped out by Cameras or the Boss watching me many do, I just hate all the interruptions in the office)
While a lot of Micro Managers, and control freak managers and supervisors love the office because they think this gives them a measure of control over their workers. They tend to believe this makes their workers more productive when in fact they are not. To be fair this is not true for all the remote workers it is true for the majority. A case in point my wife was 30% more productive working from home and was offered that as permanent location, but the down side is she has confiscated my home office for her work. So now my next house has to have room for two offices. (I work on workstations, switches, and servers with my hands so working from home is not really an option)
As far as events are concerned they don't really hold an value to the company with the exception of the narcistic personality type that want to put them on. And they can be done remotely just like companies with sites all over the globe do. In my opinion most events just get in the way of productivity, and just don't add any value when measured against productivity loss.