"For all that is in the world -- the lust of the flesh, the lust of the eyes, and the pride of life -- is not of the Father but is of the world" (1 John 2:16, NKJV).
The Torah is a great and wonderful thing but we are not supposed to wear it as a badge of superiority. It reveals the heart and mind of Yahweh and was given to us for our protection and blessing.
Good and lawful things can be, and are, sometimes used in the wrong way. There was a time when the Israelites used the Ark of the Covenant as a talisman in their wars against the Philistines (1 Sam 4ff). They brought it out of the sanctuary and though by bringing it to the front line if would inspire the troops and bring them good luck. It didn't. In fact, the Philistines captured the Ark for seven months and dealt them a severe defeat.
Many Messianics are very proud that they are Torah-observant and make sure that everybody else knows, especially Protestants. It wouldn't be so bad if they were exalting Yahweh, and indeed they may think they are when in fact they are exalting their own wonderfulness instead. In the end it becomes nothing more than egotism, self-exaltation and pride, which is so clearly manifest in their behavioural fruits.
Observing Torah does not make us superior because observing Torah doesn't actually earn us any kind of favour from Yahweh. Torah-observance is an obligation of the saved and not a work of salvation. Talmudic Jews observe Torah but that does not make them right with Yahweh. Far from it.
It is our duty to teach the truth and expose falsehood but to let Yahweh do the work of changing men's and women's hearts. We can do no more than leave it in His hands. Having taught the truth, we are to water it in love, meekness, gentleness, long-suffering, patience and loving-kindness, remembering that we too were likely once ignorant and in need of forebearance. Yahweh knows our hearts anyway and who are we to say whether someone is being excused because of ignorance or not? When we judge the condition of a believer's soul in anything except the most obvious fruits that the apostles detail (things all can see) such as fornication, idolatery, adultery, homosexual acts, sodomy, theft, covetousness, drunkardness, revilry, and extortion (1 Cor.6:9-10) which we know will exclude him from heaven, we may be setting ourselves up as God / G-d / Eloah and should take great care.
"Hatred stirs up strife, but love covers all sins" (Prov.10:12, NKJV).