Verbal phrases are phrases consisting of a verb, and modifiers, objects or objects, that do not act as verbs in a sentence but as a noun, an adjective or an adverb. Infinitive phrases start with a verb in their infinitive form (to + base form of the verb) and are followed by any objects, and/or modifiers.
The verbal phrase "To travel around the world" has the characteristic of an Infinitive phrase, and it acts as a noun and the subject of the sentence, as it is the idea or action that is being discussed in it.
It was because both the inventors of the products had to
face rivalry when promoting their products. In order for their products to hit
the market with excellent sales reports, both the inventors had to make an
effort show off. Both inventors refined their products to make better versions
and make them successful in the market.