I think it's a bit unreasonable. However it's a matter of context. If you live in the UK, you are categorically, and by all historical standards, amongst a tiny fraction of the richest people to have ever lived on this planet. Some people may be richer, and may advise living in a way that you choose not to, but that doesn't mean they don't understand what's it's like to have a bit less.
I think the fact that you would consider yourself to be unfortunate, or poor, shows a hypocritical, but entirely understandable mentality. The fact that we all take what riches and wealth we all have for granted shows we have no clue what 'poor' actually means.
The disposable change you have in your pocket at the end of the day isn't a sign of how rich you are. We all benefit hugely from the wealth of our country and those before us, and just because we enjoy it as a collective doesn't take that wealth away or make it any less valuable. If you have unlimited free lifesaving healthcare not just for you, but for your whole family, if you have a house with several rooms and separate bedrooms for each child, if you have enough food to not only fend off starvation but in so much excess to make you fat and overweight not to mention having money leftover for luxuries like electronic products, free time to sit on Internet forums chatting and Xmas gifts for your kids then make no mistake, you are definatively rich by world standards, so to even ask the question from a standpoint of so much personal wealth and privilege kind of answers itself.
We suffer largely here in the UK from envy, greed and jealously of people who have more money than we do ourselves, always wanting more than than the next person instead of concentrating and being grateful for the wealth we have and enjoy on a day to day basis. It's only because we have enjoyed this for so long and lived in such peaceful times with such overflowing excesses around us that we have become to view this as 'the norm', when in reality the norm would be something completely alien to our way of life we are used to.