The Alter from Novardok Zatzal has a classical Shmuess on this week’s Parsha. He asks why is: ָי ֶפ ִשׂ ה ָחי ָת ֶשׁ ן ל ַﬠ ְב ֵד ָא יבוֹת יוֹ ֵת ִמ רתּ וֹ ָר ָת ֶשׁ ן ָבּ ל ִנים ב"ר ס ח the “ordinary conversation” of the slaves of the Avos (Eliezer) more precious than the “actual laws of the Torah” given to their descendants? (The Torah elaborates at length about his conversation). He explains because every move Eliezer made was an act of Shviras HaMiddos. He had asked Avraham if Yitzchok can marry his daughter, and Avraham Avinu told him: אֵ ןירוּרָא ִמ ְת ַד ֵבּ ְבּ ק ָבּרוּ˂ You are cursed (Noach cursed your grandfather, Cham), and cannot become joined with me, who is blessed (Noach blessed his grandfather, Shem). So Eliezer had a strong Negi'a (incentive) not to want any other Shidduch to work out (so Yitzchok would have no choice but to marry Eliezer’s daughter). Eliezer went to war against his Negi'a.
He davened against his Negi'a, and made an all-out effort that he should be Matzliach, with all kinds of: ְז ִריזוּ ת resources to make things work out, and to take care of Yitzchok in a different direction than his desires. Notice that Eliezer's name is never mentioned in this Parsha. Perhaps not having his name is a sign of his selflessness; of his having no “Zich” (himself) in mind throughout this episode.
But he does call himself: יִכֹנָא םָהָרְבַא דֶבֶﬠ דל דכ the slave of Avraham. We can suggest that he was indeed Battel (devoted) to Avraham; just as Avraham Avinu was always going against his Negi'a, so was Eliezer. It always bothered me how Avraham Avinu could tell him you are: רוּרָא cursed, and go out and get a: ˂וּרָבּ “blessed” (girl) for Yitzchok! What about Eliezer’s sensitivities?
Of course, we have no understandings about these giants. But we can suggest that Eliezer had such a strong Chinuch from Avraham Avinu to go against his Negi'a, that it wasn’t an issue at all! It was obvious that Eliezer wouldn’t get insulted, and he would gladly go against his own Retzonos to get Yitzchok a: ˂וּרָבּ “blessed” (girl) and not his own “cursed’ daughter.
In our terms: Going against your Ratzon was the “in thing” in Avraham Avinu’s house. “That’s what we’re all about around here!” Especially since the Gr”a says: תוֹדִמַה תַריִבְשׁ םָדָאָה תוּיִח רָקיִﬠ, םיִיַח וֹל הָמָל אֹל יִאְו What other purpose is there for a person to be alive, other than for him to work on going against his Middos! This may also explain why Eliezer wanted that Yitzchok's future wife should be extreme in Chesed, and say: הֶקְשַׁא ˃יֶלַּמְגּ םַגְו דכ יד “Not only you can have a drink, but I will give your camels to drink as well”, since Avraham Avinu was extreme in Chesed (he ran as an old man, on a day of Sakana (medical risk); i.e., the third day after his Bris Mila, and: ץָר רָקָבַּה לֶאְוםָהָרְבַא ז חי he ran to Shecht 3 cows, just for their tongues alone).