You can actual save the alpha and be a part of your crew (spoiler).
Viewing post in Lust Odyssey (NSFW Visual Novel) comments
yeah i did that but now i have anothe problem with the compliance, since im doing the submissiv route almost no one wants to do the missions on the mission boeard. only feraldo since i can beg him. can i get compliance up even if my respect is low or did i block the mission boeard completly wiht my submissiv route?
Yeah, technically you make yourself the support (slut) of the crew. In other words, yes but not totally. Your chance to gain respect (also losing all those slutty scenes in the process) was be more proactive captain, choose to be a hero when given choice in the main flow of the story.
Compliance on the other hand is a much difficult to address. Because it involves the paying the crew's salary, to make them more happy or compliant but I can't get the grasp on how it will increase. And lot of characters also permanently out of it. While temporary loss of compliance (after the character worked) can be gained by simply letting them rest for days.