I'll share a story an interaction with a company that I worked heavily with while we were launching (this is a startup in a fairly niche, non-technical space. A smallish company with around 200 employees):
The "CEO": This guy had a large stake in the company. It was his baby, and while the "CEO" title (which I think gets way over applied) fits him, his official title is "managing partner". While we were in the process of build->launch, he was heavily involved in literally every single department. Not in a micro-managing way, in an "this needs to be done and here, I am going to help" way.
It would absolutely not have seemed strange to me, or anybody else, to see him out on a scissor lift with a hammer drill and some cables mounting something to the wall, if that's what was needed. When we did launch, some things went...wrong.
The night before we opened, he, as well as some of his friends, not even people employed by us, spent until almost-down doing "grunt" work. Dirty, tedious work moving huge heavy things around, and walking all over the place to get them.
That night he slept here (so did I)
The months leading up until that launch, and the months following it, he was here until well after dark because a lot of the people who had been hired were "green", and had no idea how to do their job yet. We were all figuring it out as we went.
The culture here at that time was addictive (and I wish we could get that feeling back of "making it up as we go". We've got everything pretty well dialed now). People throw the cliche of "we were a family" around pretty liberally, and I'm going to throw it around too.
We were a family.
We ate together, we drank together, and the "core" group always left together, meaning that nobody left until everybody's work was done. (including the managing partner, who absolutely didn't need to be, and was the one setting the example).
This has been an absolutely amazing company to work for. The culture here was, or is amazing.
The sad bit is that a lot of the culture that I fell in love with has faded. Yes, we're growing (rapidly! Awesome!), but we've more-or-less all hit our grooves. I know what I'm doing, the "CEO" does to, and there aren't really any scissors lifts or hammer drills left.
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I guess I'll end the story with a question: how do I/we get back to that?