Would you say a financially comfortable american with terminal cancer is 'better off' than 99% of the world? - Of course not. Same thing with depression, depression is not self pity, it is a mental
illness that has fuck all to do with the size of your wallet. As Robin Williams demonstrated, sufferers are unable to endure living even when swimming in money.
I'm not having a go at you personally, most people who don't understand depression have your dismissive attitude. I suggest you try educating yourself on the subject because odds are you will encounter a loved one with depression at some point in your life and it's handy to know what to do after telling them to "cheer up" doesn't work.
As for TFA, I don't find it surprising that "start up" people have a high proportion of manic-depressives, the manic phase of the illness is characterized by extreme
optimism.
Shameless plug for a good cause