…but hospitable, loving what is good, sensible, just, devout, self-controlled…
Titus 1:8 (emphasis mine)

Love is such a defining characteristic of the Christian life. The greatest of all the commandments are focused on love.

“Teacher, which is the great commandment in the Law?” And He said to him, “‘YOU SHALL LOVE THE LORD YOUR GOD WITH ALL YOUR HEART, AND WITH ALL YOUR SOUL, AND WITH ALL YOUR MIND.’ This is the great and foremost commandment. The second is like it, ‘YOU SHALL LOVE YOUR NEIGHBOR AS YOURSELF.’ On these two commandments depend the whole Law and the Prophets.”
Matthew 22:36–40

The elder is to demonstrate a love for God that results in a love for people. In addition to loving God and people, the faithful elder is to love all things that are good.

Let love be without hypocrisy. Abhor what is evil; cling to what is good.
Romans 12:9

Elders who demonstrate biblical love for God, people, and all good things will also demonstrate a lack of love for the things of this world.

Do not love the world nor the things in the world. If anyone loves the world, the love of the Father is not in him. For all that is in the world, the lust of the flesh and the lust of the eyes and the boastful pride of life, is not from the Father, but is from the world.
1 John 2:15–16

As with most of the elder qualifications, this requirement is not solely for those in positions of spiritual leadership. All true Christians will love what is good. Since elders are to be examples to the flock (1 Peter 5:3), it is absolutely essential that they set a pattern others can follow when it comes to who and what the believer loves and what they choose not to love.