Some of the longer fragments of the Hesiodic Catalogue of Women deal with the wooing of Helen. While later traditions offer various explanations for why Menelaos prevailed, several fragments isolate one feature of her future bridegroom:
Hesiod, Fr.204 85-57
The son of Atreus, war-loving Menelaus conquered
Because he brought the most [gifts]….”
… ἀλ̣λ̣’ ἄ̣[ρα πάντας
᾿Ατρε[ίδ]ης ν̣[ίκησε]ν ἀρηΐφιλος Μενέλαος
Hesiod, fr. 198 2-6
“The sacred strength of Odysseus wooed her too,
the son of Laertes who understood clear things.
He did not send any gifts for the sake of the slender-ankled girl.
for he knew in his mind that fair Menelaos
would prevail, since he was the best of the Achaians in property.”
ἐκ δ’ ᾿Ιθάκης ἐμνᾶτο ᾿Οδυσσῆος ἱερὴ ἴς,
υἱὸς Λαέρταο πολύκροτα μήδεα εἰδώς.
δῶρα μὲν οὔ ποτ’ ἔπεμπε τανισφύρου εἵνεκα κούρης·
ἤιδεε γὰρ κατὰ θυμὸν ὅτι ξανθὸς Μενέλαος
νικήσει, κτήνωι γὰρ ᾿Αχαιῶν φέρτατος ἦεν·
It seems that the wealth of the Atreids was a motif contrasted with the qualities of other families:
Hes. Fr. 203
“The Olympian gave bravery to the descendants of Aiakos,
Brains to the offspring of Amythaon, and wealth to the sons of Atreus.”
ἀλκὴν μὲν γὰρ ἔδωκεν ᾿Ολύμπιος Αἰακίδηισι,
νοῦν δ’ ᾿Αμυθαονίδαις, πλοῦτον δ’ ἔπορ’ ᾿Ατρεΐδηισι.
Aiakos was the father of Peleus and Telamon, making him the grandfather of Achilles and Ajax. The descendants of Amythaon were prophets through his son Melampous. The sons of Atreus were Agamemnon and Menelaos.
Nelly knew this answer. I am sure of it: