How we cite our quotes: All quotations are from Star Trek III: The Search for Spock.
Quote #1
SPOCK [recording]: Don't grieve, Admiral. It is logical. The needs of the many outweigh—
KIRK [recording]: The needs of the few.SPOCK [recording]: Or the one. And I have been, and always shall be, your friend. Live long and prosper.
The Search for Spock opens with this "previously on" moment from The Wrath of Khan. We hope you enjoy it, too, because you're going to be seeing it a lot. Point is: Spock's loyalty to Kirk and the crew of the Enterprise causes the events of this entire film.
Quote #2
MORROW: I'm sorry, Mr. Scott, but there will be no refit.
KIRK: Admiral, I don't understand. The Enterprise is not…
MORROW: Jim, the Enterprise is 20 years old. We feel her day is over.
KIRK: But we had requested…We'd hoped to take her back to Genesis.
MORROW: That is out of the question.
Kirk's loyalty to Starfleet is well-documented in the Original Series and the previous two films. But does he receive the same loyalty in return? Nope. It's not like they're going to use the Enterprise, just give the man the keys already.
Quote #3
KRUGE: We are going to this planet. Even as our emissaries negotiate for peace with the Federation, we will act for the preservation of our race. We will seize the secret of this weapon, the secret of ultimate power.
KLINGON: Success, my lord.
Like Kirk, Kruge's loyalties aren't in line with his superiors. Unlike Kirk, who supports his friends and family, Kruge supports the "preservation of [his] race." Never a good objective to mix with ultimate weapons, in our humble opinions.