hrmmm YEP!
Under Federal and state commercial law there are limits to what is known as "
puffery."
That does not include blatant, demonstrably false statements of fact about a product, which are illegal.
NOPE! In fact, gold is not the metal with the highest conductivity (lowest resistance).
The best conductors are:
Carbon (graphene)
1×10^−8 ρ (Ω·m)
Silver
1.59×10^−8 ρ (Ω·m)
Copper
1.68×10^−8 ρ (Ω·m)
Annealed copper
1.72×10^−8 ρ (Ω·m)
Gold
2.44×10^−8 ρ (Ω·m)
Aluminium
2.82×10^−8 ρ (Ω·m)
One problem with the metal to metal contacts in connectors is oxidation. Metalic oxides do not conduct as well as the base metals. Some metallic oxides are resistive, some, including aluminum, are insulators, and some metallic oxides and other airborne reagents can form semiconductive junctions on the metal surface that make it behave like a transistor or diode that can act as an RF detecor or otherwise generate spurious noise in a system.
Gold is a preferred metal for connector contacts because it doesn't readily oxidize under normal temperatures and chemical environments as do copper, silver and aluminum.
I'm afraid your reality check bounced.