“The altar shall be holy of holies; whatever touches the altar shall become holy.”
~ Exodus 29:37

While all the Temple’s vessels were invested with holiness, the altar’s level was so powerful that even other things became holy by merely touching it.

Why was it so unique?

The altar was where man connected with the Divine through an act of giving. By offering his own animals there, man both gave of himself and he gave to God. God in return gave atonement.

If you seek to be more impactful – don’t be more aggressive – just be more giving.