There is no 'necessary connection' between what is legal and what is moral. [=what is legal does not always have to be moral and what is moral does not always have to be legal]
Higher prices are a 'necessary consequence' of the company's new services.
I'll 'do the necessary' [=do whatever is necessary] to get the job done.
(..) before Jimmie's better half pulls into the driveway. Damn. This morning air is some chilly shit. Are you sure this is absolutely necessary? You know what you two look like? VINCENT: What? Like a couple of guys who just blew off somebody's head. (..)1994 Pulp Fiction
(..) but it was pretty fucking good. Don't you hate that? Hate what? Uncomfortable silences. MIA: Why do we feel it's necessary... to yak about bullshit in order to be comfortable? I don't know, but it's a good question. That's when you know you've (..)1994 Pulp Fiction