Not true. It depends on the market. In Canada Visa Infinite is simply the second-highest tier and is equivalent to the US's Visa Signature and Mastercard World. The highest tier (only recently introduced, and only available in Canada) is called Visa Infinite Privilege and, while it has no equivalent to any Visa in the US, is roughly equivalent to Mastercard's World Elite.

But it really all depends on the issuing bank as well. TD's Aeroplan Visa Infinite Privilege in Canada doesn't even really compare with Chase's United Mileageplus Club Card Visa Signature, for example. Each is the top tier credit card for Air Canada and United respectively, but the Visa Signature from Chase is a far more substantial product than the Visa Infinite Privilege from TD.

In other markets it is true that Visa Infinite might be more highly regarded, or placed, but in practice, it is simply a Visa Signature by a different name.

Of course, none of these distinctions really matter beyond what interchange fees the merchant gets charged.