Your faith walk should not exist to only serve yourself. Yes, your relationship with Christ is a one on one endeavor, but the benefits are meant to be shared.
The more you spend time developing your faith, the easier it is for those around you to reap the rewards. As an ambassador for Christ those in your circle of influence should see character traits worth emulating.
As you walk with Christ you are made righteous by your obedience to His teachings. If you have children, they will be blessed spiritually as they walk in the same integrity as you do. Those without children can have the same effect on anyone observing their behavior.
The godly walk with integrity; blessed are their children who follow them. Proverbs 20:12 NLT
Always strive to walk with a purpose so part of your legacy can be the positive influence you have on those around you.