The angel’s greeting to Mary - “Hail, full of grace” is a Scriptural example of someone (a heavenly being, no less!)ascribing honor and respect to Mary, because she was willing to bear Christ.
Also, Elizabeth’s greeting to her is Scripture: “Blessed are you among women.”
To honor another Christian for their yes to God points directly to Christ.
Maybe yes - maybe no. There are plenty of spiritual leaders whose followers are drawn merely by the aura, or persona of the leader. These types of followers are not so much interested in knowing God as they are in being "spiritual" (or being thought of as spiritual).
The problem is that we humans will by nature "worship" another - and not necessarily God (hence the 1st & 2nd commandment).
We must always be vigilant to ensure that we not become idolaters - of our spouse, our children, our possessions - or our priest/pastor/saint.