I think they are proud of their immorality.
Psalms 12:8 The wicked freely strut about when what is vile is honored among men.
Isaiah 3:9 The look on their faces testifies against them; they parade their sin like Sodom; they do not hide it. Woe to them! They have brought disaster upon themselves.
2 Peter 2:13b Their idea of pleasure is to carouse in broad daylight. They are blots and blemishes, reveling in their pleasures while they feast with you.
Ezekiel 16:49 "`Now this was the sin of your sister Sodom: She and her daughters were arrogant, overfed and unconcerned; they did not help the poor and needy.