Seems to me the Lord Jesus put them in their place on that issue...called them “White washed hypocrites”...”Brood of Vipers”...and then pronounced many “woe is you” over them for carrying their own righteous acts as if those could somehow cleanse their way before a Holy God.
It's just another stumbling block which holds people back from enjoying the relationship Jesus desires with them...hard to see Christ thru the “veil” of legalism. That very “curtain” which God almighty Himself tore down top to Bottom....and with it said...”The Just shall live by faith”!
God is not interested in sacrifices for sin but in a pure heart.
Psalm 51:16-17 16 For you will not delight in sacrifice, or I would give it; you will not be pleased with a burnt offering. 17The sacrifices of God are a broken spirit; a broken and contrite heart, O God, you will not despise.
Micah 6:6-8 6 "With what shall I come before the LORD, and bow myself before God on high? Shall I come before him with burnt offerings, with calves a year old? 7 Will the LORD be pleased with thousands of rams, with ten thousands of rivers of oil? Shall I give my firstborn for my transgression, the fruit of my body for the sin of my soul?"
8He has told you, O man, what is good; and what does the LORD require of you but to do justice, and to love kindness, and to walk humbly with your God?