The "zuckerberg's underlings" thing was a load of bullshit. I've seen a corvette, an r8, a lotus, and various other really nice cars at work. You can drive whatever you want, just don't be an asshole about it.
That depends on your net worth, your definition of 'expensive', and which Lotus you're talking about.
The Elise is on the high side of 'normally priced', but as commuters they're great because they get decent gas mileage.
A well-appointed Exige is close to $80k I think, and cuts the mileage in half. It's a track car, really, so anybody driving it on the streets is probably 'doing it wrong', but I've driven more serious cars as daily drivers so I'm not one to judge.
I can't really comment on the Evora because it's 'new tech', and is supposed to be expensive as such. They're expensive compared to the Prius, but they aren't really comparable either.
My point is that none of these are even $100k cars, and if you wanted one you could save for one. They're not Ferraris or otherwise requiring IPO money.
Exige is basically the same as an Elise. Sometimes they have superchargers.
An Evora is similarly priced to a decked-out Cayman. I mean, we're not talking Expensive for any of these.
(I've driven all of these, and much higher-end stuff, too.)
Yeah -- nice/hot cars are relatively common in Silicon Valley, just not in SF. (like, color alone isn't enough to identify Roadsters in the parking lot, and the same is almost true of F430s. I've never seen a 911 which wasn't the top of the line Turbo).