A funny thing about this story is the photo is of the SSE. The very same place where I worked on the trading system and got down voted for '2300 a second sustained. I was doing that on PA RISC under HPUX in 1995. BFD'. More relevant to the story at hand, when the bell went for lunch, most of those people crossed their arms and put their heads down on them for a nap. I am sure many never left their desk.
Did you find working there meaningful?
Half of the time I found playing with cool HFT tech fun just for the tech part of it and no thoughts about meaning at all.
But when there is a boring patch, the meaningful/meaningless question is tantalising.