The client is presented with two options:
One bold and agressive. Think "power."
The other, soft and calming. Think "chemistry."
It's important to know how you want your brand to be perceived. Triton, lord of the sea, represents the power and mystery of the depths. Triton the brand, however, wanted to be seen as futuristic and rooted in science.
Also, Triton was Ariel's dad, and he was totally correct to forbid her from running off with a guy she had never actually met.