Wow, I'm kinda amazed how sensitive people are!
The OP raises a tricky question. I read a book a while back which analysed who the rich were, and who the rich were not - basically, rich people lived moderate lives and drove old cars, while those trying to appear rich drove the sportscars, etc.
Is it fair that I can sit in my little house here, at 11pm, typing away with music playing and light? A fridge with milk, cheese, some meat, vegetables and so on in, when I have (at this stage in the year) grown nothing? While people on other continents toil those 12 hour days?
I think about it, sometimes. I visited tea plantations in Bangladesh a few years back. The difference in life is... unreal. I mean, "duh" of course it's different, but...
The other thing in that book I mentioned earlier was that wealth tends to disappear quickly - the first generation, through hard work, becomes wealthy; the next generation maintains the wealth because they saw their parents work so hard (but don't work the crazy life their parents did); and the next generation tends to squander it, and they have a sense of entitlement. Makes sense.
One thing I know for a fact is that people who grow food are underpaid. Farmers are, for want of a better phrase, at the bottom of the food chain, yet without them we all starve. Web designers? Useful? Sure. Efficient? Sure. But necessary? No - why, then, should I earn $50 an hour doing programming stuff, but only $12 growing food?
There is no way for life to be fair. And perhaps unfortunately, our best intentions usually go awry: increasing, I don't know, benefits for the unemployed leads to more people going unemployed because it's easier than working (perfectly sensible, from an animal point of view!). Increasing the number of lanes on the motorway from Here to There does not make the commute easier; instead more people will drive. We seem hard wired (from my experience) to accept a 45 minute commute as ok, and will live accordingly.
Capitalism is horrible (bankers, CEOs, getting many many many multiples of salary is just wrong, but what can you do?), but the best we can do at the moment. I worry most about corporate lobbying, the power of marketing, and human gullibility. Capitalism itself is not to blame, but human greed, ignorance and laziness might be.