Who is responsible for the destruction of Charles Raggles' dream in the novel, Vanity Fair?

Raggles works as a gardener for the Crawleys and saves his money for years until he is finally able to buy a greengrocer shop and house of his own. Becky and Rawdon come to be his tenants but do not pay their rent, cheating him until finally they have ruined him. Raggles ends up in debtors' prison as a result of their actions.