the funny thing is that the same people who talk about collaboration at the office are often the decision makers that set up open offices where everybody wears headphones and nobody ever talks to each other.
I think most workgroups have effectively been paying extremely high overhead in social costs just so the organization could have the option to organize easily. The problem then is that meetings are called flippantly. If it's hard to get everyone in a room, you'll do a better job capitalizing on when it happens.
The downside is there really are a large array of tasks that a group can tackle better than an individual, but I've never seen a corporate group meaningfully recognize or organize for those tasks. Far more often, I get pulled into meetings because some specific individual or another is lacking in autonomy and expertise.
These people are unconsciously aware that they are incompetent. They pull people into meetings in order to have a sense of having done work, at the cost of total productivity.
Maybe they think about how to justify their working arrangements to us humans.