The Catholic Church teaches infallibly that the Eucharist is a sacrifice that is necessary to consume to attain salvation, as an airplane is necessary to cross great distances.
Gospel of St. John 6:53-56
53 Jesus said to them, “Very truly I tell you, unless you eat the flesh of the Son of Man and drink his blood, you have no life in you. 54 Whoever eats my flesh and drinks my blood has eternal life, and I will raise them up at the last day. 55 For my flesh is real food and my blood is real drink. 56 Whoever eats my flesh and drinks my blood remains in me, and I in them.
The Didache (AD 70)
"Assemble on the Lord’s day, and break bread and offer the Eucharist; but first make confession of your faults, so that your sacrifice may be a pure one. Anyone who has a difference with his fellow is not to take part with you until he has been reconciled, so as to avoid any profanation of your sacrifice [Matt. 5:23–24]. For this is the offering of which the Lord has said, ‘Everywhere and always bring me a sacrifice that is undefiled, for I am a great king, says the Lord, and my name is the wonder of nations’ [Mal. 1:11, 14]" (Didache 14 [A.D. 70]).
St. Justin Martyr (AD 155)
"God speaks by the mouth of Malachi, one of the twelve [minor prophets], as I said before, about the sacrifices at that time presented by you: ‘I have no pleasure in you, says the Lord, and I will not accept your sacrifices at your hands; for from the rising of the sun to the going down of the same, my name has been glorified among the Gentiles, and in every place incense is offered to my name, and a pure offering, for my name is great among the Gentiles . . . [Mal. 1:10–11]. He then speaks of those Gentiles, namely us [Christians] who in every place offer sacrifices to him, that is, the bread of the Eucharist and also the cup of the Eucharist" (Dialogue with Trypho the Jew 41 [A.D. 155]).
We know that God sees this sacrifice as perfect, but as to the one giving/consuming the sacrifice it is another matter. Does God always give us all the ordinary graces that come with its consumption regardless of our dispositions(state of grace presupposed)?
The Question in it's formality:
Assuming that we are in a state of grace, can the Eucharist be more or less beneficial to us based on our dispositions?
((1)) Two men, in a state of grace, consume the Eucharist. But the first man has a sundays-only-catholic attitude while the second man is on fire for God, both of them believe in the real presence but neither of them worship Jesus in the Eucharist. Do they receive equal blessings of God?
((2)) Two women, in a state of grace, consume the Eucharist. But the first woman regards the Eucharist as merely a symbolic act, while the second woman recognizes and worships Christ in the Eucharist. Do they receive equal blessings of God?
PS: Yes the Eucharist takes away all venial sins regardless of dispositions provided we are in a state of grace, but that is just taking away, I am speaking of what it can potentially give based on our dispositions. The extras if you want.