I find Mr. Krabs, along with Squidward, Plankton, Mrs. Puff, and Squilliam, people that don't deserve to exist in SpongeBob SquarePants. This is because he is avaricious, mean, abusive, a person who'd be beyond more than willing to make his wishes come true, and occassionally backstabbish. He and the four others should be placed in a different show.
I don't think your being fair to Mr.Krabs, his life was probably the saddest on the show( I don't feel sorry for Squidward, he's just a lazy narcissist ). His greed is most likley the result of childhood poverty, which might have resulted from his father dying when he was young. He obviously hoards as much money as possible out of fear that the same thing will happen to his daughter (remember, he's 71 years old). The pressure on him only increased after his wife walked out on him or died. This is also the reason he hates plankton. Plankton is constantly trying to ruin his livelihood or steal his recipe and profit of his effort. This is why I don't hate Mr.Krabs.