If you spend 100% of what you earn, inflation will go up (or the value of money approaches its true worth - nothing) and you will, therefore, need to get paid the same percentage more as inflation to stay even.
If you get a pay-rise in line with inflation (assuming inflation is calculated fairly which it is not) then you will be even.
But inflation is not calculated correctly because it excludes things you actually need to live, like rent and house prices, like pensions moving to defined contributions etc. So why should you settle for a percentage increase?
Skip ahead to consider the flip-side. Imaging you are already 3 to 4 times higher on the hierarchy at work and you are making good money now. Groceries are only 10% of your salary and you have loads of extra cash to spare from your wage even after all expenses. Why should your wage go up by the same percentage as retail prices? TO keep the maths very simple, if groceries cost you Â£100 a month, 2% increase is Â£2, but you are getting 2% increase on your Â£1000 a month salary which is Â£20. You are Â£18 better off for a cost of living increase.
The cost of living rise does not work. It benefits the rich. Or does it just benefit those who happen to be living below their means? Both.
The rich could be squandering all their extra salary on 'stuff' and why should they be worse off if RPI goes up? Similarly, you can have the effect of the rich right now by living below your means and taking the upside.
Or you can just earn more money, work harder, work on yourself, become a lynchpin, suggest new ideas, start a side business, sell stuff in the attic, sell things from garage sales. But do not complain.
I saw a homeless person with an iPhone. You can start a business with that same device in your pocket. You have all the knowledge you need inside it even if you do not know where to start - the internet. Just fucking do something to pull yourself out of the hole, but do not moan about economic conditions. You can see what the economy is going to be like if you educate yourself - factor it in. Get ahead of the game.