Self-Delusion

How to deal with others when it comes to financial matters was the central theme of yesterday's Torah reading. The infinite capacity for self-delusion that many of us feel when it comes to financial dealings is alluded to in the first words of the Parsha. It begins ואלה המשפטים אשר תשים "And these are the statutes that you should place." If you look at the first letters of these words and unscramble them it spells out תאוה, lust. If you look at the final letters of these words they spell out מרמה, which means deceit. The message here is that lusting for something, in our context specifically money, can lead one to deceitful behaviors.
How important is it then to check oneself when striving to achieve a goal to make sure that the desire to achieve is not overriding the desire to be in integrity.