Being salaried is not all that bad. I get a full day's pay if I put in at least two hours of my time and can take long or short lunches and do errands during the day if I need to. I just need to get my work done. I generally put in 45+ hours "at work" each week. I am also eligible for bonuses and incentive pay. There are very few $50K salary folks putting in 50+ hour weeks unless they are on some form of commission. The attorneys, tech folks, and investment bankers who pull very long weeks are are very well paid and usually have big bonus opportunities.
That's all fine, except for the working 45+ hours per week part. I'm well paid, can flex my time however I want, have bonus opportunities, etc... but it's for a 37.5 hour standard work week.
Presumably there's some number of normal weekly work requirement where you wouldn't want to do your job anymore (140/week?). For me, that number's lower - somewhere under 40 hours.