I will assume the worst in a manager if they haven't gone out of their way to disprove the notion.
They have both the authority and hopefully the management / people skills to be the one to stick their neck out and say "Hey, let's make this team be one that's honest and tries to actually create value for the company, not just keep our heads down and try to look good".
Being the young optimist who insists that everyone in the company tries to do the right thing is not smart unless management is making it clear that this is what they want.
That just makes it sound like your company has terrible recruiting. If it's not true, you're creating your own problems. If it is true, get out, obviously.
They have both the authority and hopefully the management / people skills to be the one to stick their neck out and say "Hey, let's make this team be one that's honest and tries to actually create value for the company, not just keep our heads down and try to look good".
Being the young optimist who insists that everyone in the company tries to do the right thing is not smart unless management is making it clear that this is what they want.