Good question. I don't work at a company with a lot of culture so I'll refrain. I'd like to see answers to this from the same company, but the CEO's perspective vs a mid level workers perspective.
Nothing. We pretend that we are special or different. But at the end of the day, we have a beer fridge and a pool table. An open office plan where its always noisy.
There is a genuine push to help people become more charitable. Every company I have worked for previously says they will support this or that, but it's not really that important and more PR or nice HR policy. Where I am now it is almost compulsory to pick and support a cause on company time each year, this being done in a good way...as 'almost compulsory' might come across as a bit heavy but it isn't that at all.
We're all kids on the inside. Some show it more than others, but there is that underlying inquisitive heart and mind that each possess to create some of the most beautiful love of science that I've ever seen.
I'm a mid-level developer at my company and work alongside the company co-founder, who after 21 years is still deeply involved and active. The best part is he still thinks fart jokes are awesome.