Working 8 hours a day in a job you hate - By definition that's not a stress free life. Of Course there's the healthy middle ground doing a job you don't hate but don't love earning a reasonable amount of money which covers your bills and leaves extra for 'fun'.
I'm calculating this personally at ~£26,000 or ~ $40,000 given than rent will sap at least 60% of my income.
Reading about the application of ethics and morality to intelligence agencies