The common belief is that it’s easy to criticize, that it’s easy to hate, but the truth is that it is not effortless to be negative: it takes work. It may in fact be even more tiring than being positive, though the scientific data on that is still inconclusive. At the biological level, there is no judgment, energy consumption doesn’t differentiate between good and bad, so waste is merely waste, for good or ill. So the Buddha espouses the Middle Way, which is not to say in between Yes and No, an indifferent Maybe, but rather more akin to the point of a triangle, a high ground connected to, but removed from, extremes, be they monkish or lavish.
Make no mistake, reaching this goal is work. It too expends energy. Ensconced in diamonds or wrapped in rags, as long as you are reaching for something in the dark, why not reach intelligently, rather than flailing about.