"Lofty perch"?
I lived with severe depression for several years of my life. To the point I attempted suicide... more than once.
I know a lot more about this topic than you might like to give me credit for.
I'm happy that you've managed to struggle through your depression wars, but I don't know of anyone who would agree with your harsh assessment of people with depression. Since depression can often manifest itself in despondency and irrationality one who suffers from it cannot always just snap out of it. Being irresponsible or full of self pity are traits unto themselves.