It's self-destructive behaviour which causes the WT's own brand of a "self-fulfilling prophecy" of doom.
It's all part of their mind-control. If you are well-off, then Satan has his hold on you.
If you are an uneducated, poverty stricken, low-class slob working as a janitor while you Pioneer your life away and donate every last penny to the Org, why Jehovah is blessing your future perfect self in the New System.
Makes sense to a deluded cult member who's suffering day after day.
Education, a good job, and good health are a sign of "giving in" to Satan's wicked world. What a helluva way to live.