*Lot's wife. C'mon Lex get it right
And it wasn't for "looking back" it was, in a general sense, for "disobedience" because she was specifically instructed by the angels to run away from the city and not to look back. But more specifically and perhaps more esoterically, it was because they were fleeing a city of naughtiness and wickedness, where people were doing evil things like having sex with whoever the eff they wanted, being homosexual, gambling, drinking and basically having too much fun... and also failing to worship the one true god blessed be his holy name...
But she, devil-woman that she was... didn't really want to leave, she, unbelievable and incredible as it sounds, had the temerity to actually regret having to leave her home and belongings in that wretched hive of scum and villainy... so in a moment of regret and despair, she looked back to see her home burning to the ground... which demonstrated that she wasn't fully faithful, her heart wasn't fully invested in what she was ordered to do. So as punishment, god killed her, and that right soon.
Now
Job's wife... she was the one who encouraged her husband to "curse God and die" as a result of the heavenly father having elected to allow Satan to slaughter Job's entire family, except his wife, including killing all 10 of his children (along with all his vast herds of assorted livestock) and afflict Job with a horrific disease that caused boils and blisters all over his body... All over a bet that the almighty had with Satan, that Job only worshiped god and was a good servant, due to him being rich and blessed.
This is the point where in response to his wife's admonition, Job delivers his famous line "The Lord giveth and the Lord taketh away... let the name of the Lord continue to be blessed". So then a reward for his faith, Job was given a bunch of
new children and livestock and such, so I'm sure that totally made him get over the dead ones. No harm, no foul.
So hopefully that clears things up, demonstrates your error... and totes redeems god.