No matter how much we think money is nothing... especially it's nothing for happiness. Actually it's only nothing for happiness, when you have no demand. Otherwise for everything you need money. Even you have to pay for internet while you are reading this blog.
That's why people look for regular monthly/weekly income to stay calm and think for other goals. May be that's why people looks for risk free job/payment to live their life, though business men earn much more than an ordinary service holder.