So far Dandy has proved (especially episode 5) he is at least a better person morally then one dimensional characters like Johnny Bravo or Zapp Brannigan who are ass characters for the sake of being an ass on their shows . There is more to him then what he lets out on the surface. My best comparison character to Dandy would have to be Sakata Gintoki from the long running sci-fi shonen work Gintama.
For those not familiar with the work, Gintoki the main character is a lazy and vulgar samurai who runs an "odd jobs" buisness (hmm... Dandy buisness is capture mysterious aliens) with hobbies such as gambling, drinking, reading JUMP, eating sweets, and getting horny over the weather girl (hmm Dandy has similiar unimpressive hobbies) while having two young subordinates who on the surface he don't seem to care about (dandy has a similiar relationship with his two subordinates) with only short term goals such as make enough money to pay the monthly rent (dandy has similar money issues along with short sightness).
Despite all of these questionable life choices, gintoki has an ironclad bushido code he follows that seems to redeem his character such as protecting those he cares about (haven't seen too much of that from Dandy in serious moments yet besides the little girl), stopping corrupt people oppressing others that he comes across (Dandy hasn't faced this yet), does "odd jobs" where he doesn't even ask for money in the end (Dandy was shown to refuse money for the moral highroad), etc
In short both of those characters are the type of person that would say one thing but act another way. They would usually lie about their true intentions (Dandy says he going to Boobies but instead tracks down girl's grandpa) for the sake of protecting the other person as they help from the shadows. Again most of this redeeming criteria for Dandy was mostly from episode 2 and 5 where there were serious moments involved. I'm not gonna expect alot of episode 5 material from Dandy since the show is comprised of 80% comedy 20% serious which is roughly what Gintama was.