Characters or events that prove that Charles dickens felt that wealth is corrupting to people?

Pip

Estella~ she's actually corrupted by her guardian to a far greater extent than by money

Herbert Pocket~ he gets himself into quite the financial pickle, but in the end his good heart and gentlemanly ways win out

Compeyson~ dumped Miss Havisham, became a counterfeiter and a swindler — but it seems as if he was corrupt all along

Arthur Havisham~ greedy spendthrift/ corrupted by inheritance/ sets up his sister so he can gain hers