Some of us respect the teacher because she/he gives knowledge as well as the knowledge itself because it comes from the teacher. It's like in a classroom. I teach. I don't expect my adult students to worship me, thank gosh; and, we do have a invisible consensus that I am not just spiting out knowledge that they can take in internally. They also have a consensus that respect for me as a teacher who gave this knowledge is equally the same. That's why (generalizing for my point) they want to learn from me, not
just because of my knowledge but they trust
me to give it to them and the knowledge I give.
How and why would you believe in the knowledge of someone if you don't believe in them?
Going back to my teaching, if my students didn't trust me and have some level of respect and expectation from me, what is the purpose and motivation of them gaining knowledge from me? Yes, they can find this same knowledge in a book or hear it (rather than listen) to it without making a relationship with the teacher to understand it better and probably do well. I find students succeed more when they trust and know their teachers
as well as the knowledge.
If they respect the teacher first, then they trust the knowledge they receive from the teacher is worth taking in. If they trust the knowledge first, they could be fooled because they don't trust and test the teacher to trust him or her. Making a connection with the object or person of "worship" is important not because of bowing down and idolizing (if that's what you mean?) but more of respect and reverence that what is given is well respected and lived.
So, based on my teaching and being a student as well, there isn't a "rather than" in the equation; it's an "and". We have respect for the knowledge
and the person. The parent
and the lesson. The boss
and the assignment that leads us experience for a well deserved promotion and so forth.
Spiritually, the idea is no different. Unless you are implying that people are idolizing the teachers and disregarding the knowledge the teacher gave? Using the teacher as if they are the knowledge?
Another example with teaching. I teach English as a Second Language. If students came in with little to no acquisition of English and saw text books on their desks and were required to find the abstract knowledge of the cosmos of English language and idioms, they'd be at a lost. They can pray all day and night. They can flip through chapters and so forth. However, without that source (person or object-say a dictionary), how can they start with their learning? That's why in many religions we have priests, mentors, elders, etc. They aren't replacing knowledge. Because of their experience, they are taking their knowledge and giving it to the next in line. So, it's an "and" situation really.
Unless you mean maybe they are idolizing the person or object and completely disregarding the knowledge? If so, then there's no point in worshiping the person/object. If they worship the statement but do not give thought to the teacher, then I find that disrespectful to the teacher.