]Mr. Darcy is responsible for Mr. Wickham's lack of money. If he had been able to become a clergyman and have the "living" old Mr. Darcy promised him, he would have a big enough income to marry on.

I don't think it is good for a man to lament his laking of money for another man's doing. Is it really that we have to blame Darcy for Wickham's misfortunes? Is he really obliged to probate his father's will? or to fulfill Wickham's wishes?
And if he so, why didn't W try to fulfill his own wishes by hard work instead of blaming Darcy and run away to the regiment?
Why didn't Lizzy think in this direction? I think b/c of her anger, a woman I think can forgive anything except an insult from a man describes her as tolerable, what if he said ugly about her do you think she will kill him?