Too often we assume that a ban on lying is the only mean to strengthen a community, forgetting another key aspect to our living: cheerfulness. Now, cheerfulness shall not be confused with happiness: while the former is a behavior, the latter is a condition. In opposition to the purist and idealistic ethics, which would desire to build a society void of sin, we may hence oppose a model of society that maintains itself on cheerfulness and sympathy. Even if you had to lie to me, as long as there is cheerfulness, I will accept you.
Of course, contemporary Western society reminds us that cheerfulness can be dangerous too: corporations as well as politicians often disguise under cheerful advertisements and slogans some dishonest purposes. But the solution is not to ban cheerfulness from our life, or to ban lies. (The liar paradox, one of the most difficult paradoxes to solve, is a witness to the elusiveness of the the concept of lying and, perhaps, to its unavoidability.) Rather, honesty should be the goal. Cheerfulness, happiness, and honesty: if you have those three in your life, you may hope to be blessed; if you have those three in a society, you may hope that it will grow strong.