Making the decision on what is good but what is best is a matter for godly wisdom. With just the bare minimum of morality, most people can see the difference between what is good and bad but the real wisdom comes in determining what is best. We have good, better and best differences in almost every decision of life. A true biblical agenda for our lives will always strive for what is best which is what is in God's will.
The problem starts in making that determination from God's viewpoint and not our own. Our perspective almost always brings about our own will. God's viewpoint is for the blessing of all people if we are willing to be obedient and die to our own desires. That's the kicker. We have to be willing to give up our own desires and replace them with His. At this point, the focus is about loving others more than ourselves. How often are we making that determination? How often are we willing to give up our own freedoms, our own resources, our own time for the sake of someone else?
One step toward that goal is to love our brothers and sisters in Christ. Loving them by God's standard requires seeing their needs and meeting those needs. not just from our abundance, but from a heart of sacrifice. (1 John 3:17-19)