Huck is able to escape unscathed, but the King and Duke werent as fortunate as tar and feathers awaited them Twain In the selected passage, Huck struggles with his self-sense of morality.
Also, just as Jim looks up to Huck, Huck looks up to Tom Sawyer, and lets his useless rescue attempts jeopardize Jims freedom.
There were many hardships that a person had to endure.
Morals are what someone falls back on when faced with a problem or a difficult decision. There are more progressive individuals, but the overall culture changes quite slowly.
In determining his self image, Huck deals with conformity and freedom, trying on different identities that do not belong to him, and enveloping and shaping these new found attributes into an identity which best suits his "deformed conscience.
Along with this novel being coming-of-age, Huckleberry is a coming-of-age character. This has been an issue for over years and it is still going on.