The vast majority of people fail to see reality accurately. Most fail because their worldviews are wrong, so their conclusions are based upon incorrect perceptions and interpretations. However, even those with a decent worldview (i.e., Biblically based) often fail to see reality accurately. In these cases, it's not due to the worldview, per se, but usually due to an all too common personality flaw--one that has not yet been corrected by their worldview.

All personalities have flaws. We are fallen beings. We are sinful. Insofar as personalities tend to fall into general groupings of like traits, each group or type of personality tends to exhibit common flaws. These are so common, they're predictable. In other words, if you can accurately discern the type of personality one has, you can reasonably accurately predict their flaws (and their positive traits, too, but that's not the point here).

In my experience, there is one particular group of personalities that is most prevalent. I wouldn't say a majority of the population has this type of personality, but I would comfortably say this personality type is the most common; that is, it may be the biggest slice of the population pie. The major flaw of this personality is its inherently deficiency in perceiving and interpreting reality accurately. Even with the correct worldview, these need to work a little harder to subdue this flaw and submit their discernment to their worldview (God, specifically).

This most common personality group tends to lean toward leftism, adulterous affairs, and hedonism (sans Biblical worldview)--all based upon "feel-good" principles. To their credit, though, this same trait tends to make them more empathic and compassionate. (Note that leftist, atheist autism may prevent them from being kind, though, even while being empathic and compassionate.)

These kinds of crime (leftism, adultery, hedonism, etc.) can tend to sneak up on believers with the "feel-good" trait. It can start innocently enough by wanting to do good. The crux of the trouble actually begins right there. What is the motivation for doing good? I don't mean the reason (obedience to God) but the personal motivation, the drive or need. Our amazing ability to rationalize, combined with a view of reality (of ourselves) that is anything less than accurate, and these good deeds can be easily motivated from the "feel-good" trait rather than the purer obedience. Having been indulged, even if disguised as altruism, the "feel-good" motivation is fed and can often grow to something far more sinful. When consistently rationalized, reality gets increasingly distorted in an attempt to deny the sinfulness, thereby providing a safe harbor for the "feel-good" trait to blossom relatively unhindered into adultery, hedonism, or worse.

Presuming one is of the personality class with this "feel-good" trait, how might he or she avoid indulging it? For starters, always question your motives. The actions may be good, but the most honest motivation behind those actions may ultimately come from evil, "feel-good" desires. This kind of honesty with oneself is a huge challenge, especially for anyone inclined to see reality less than accurately. For those with an inherently more difficult challenge perceiving reality accurately, it may make ethical sense to avoid doing good deeds that carry the potential to feed the "feel-good" desire. Instead, prefer good deeds offering little to no emotional reward. This is certainly wise for those who have not yet mastered purification of motives and accurate perception of reality. Also advised is a spiritual mentor of a different personality type, one more inclined to perceive reality without distortion. Feedback from such a mentor can be invaluable to one desiring to master the personality weaknesses noted here.

What man intends for evil, God can use for good. Even if your "feel-good" motive was wrong, the Lord can still use your actions for good. This in no way justifies the action or the motivation behind it, though, and it does not diminish the sinfulness of a "feel-good" philosophy. As God can redeem an otherwise sinful action, so He can also redeem the sinner himself. See your sin for what it is. Repent of it (i.e., practice it no more). Accept His forgiveness for your sin and be redeemed without strings.