Success and money are practically synonymous in our society. As a measure of success, money allows for comparison between different successes and thus it has taken on much weight as the accumulated outcome one is after. Nothing is wrong with the accumulation of money as such. Its buying power is one of the rewards life has to offer.
However, as with any goal that alienates itself from context and becomes an end in itself, the quest for money tends to erode the values that led to its initial accumulation. With the accumulation of such wealth, the beneficiary power of money turns into a negative force.
In monetary terms, money is said to derive its value from the products and services that one can get in exchange for it. More can be said but that would be the subject of another chapter. The thing is however, that monetary value and gratification are two different things. In the measure to which money is gained at the expense of value (selling someone short) instead of in exchange for value (making someone happy), is also the measure to which it will be deprived of its gratificational-ability. Value is not independent of conscious valuation. The more that is taken into account by the evaluator, the higher the potential for gratification and visa versa. In the end it is not money that measures value, but consciousness. I wish you lots of it.