More beneficial for whom? The truth is that pollution is bad. I can make myself feel better about how much energy I use by assuring myself that I'm chosen by God and deserve to consume resources and pollute. This harms other people though. The truth is non-opinionated, so actually useful. Believing something to make yourself feel better, and ignoring problems, is biased favoring yourself and against others.

The truth has value in decision making, while comforting lies have value in stress reduction. Choosing 'truth' over 'comfort' is a long-termist strategy. Being satisfied by a simple answer will make you feel better now, increasing survivability in the short term, but finding a better model of the world to operate by, a.k.a. learning, lets you make better decisions for the rest of your life.