I dont Know about jealousy , I for one ,been a self employed sole trader,more or less my own boss since 87, I see plasterers been envious of others making money but ignore that the builder makes maybe £100 k but they're pissed off that their boss makes £1000 plus a week, I always say ,I don't want to work for stupid people, I want the people I work for to be making money,it's tunnel vision in that respect, other spreads have no impact on my earnings, my employees few that they are and my clients do, I haven't measured a job for years, one in 2010 been an exception,some jobs I give the price after I have done it,never been a question but I haven't been greedy either,at 48 I had hoped to be out of the game ,had hoped to be buying and developing but the downturn knocked me back and I am happy enough to be working for regular clients,I hate new clients now,I find it hard to even view their jobs,good luck to all that earn a living in this game ,we all have different skills,viewpoints,experience ,health and luck,
my view would be different at age 30 and different again aged 20