But, like many other things in life, the access of even a second language in my opinion gives you another tool to use as intellectual leverage to gain greater or richer understanding to many specific domains that you would otherwise require someone else to digest the information for you.
That doesn't mean you can have the tool and immediately gain the benefits of having it. It just means that compared to someone who does not have the ability to speak a second language, you have less friction to access domains of knowledge locked behind languages other than your native tongue.
Having a second car doesn't automatically mean I travel more. But if I used that other one specifically for roadtrips, it puts me in a category of people that is far smaller than the general population or even the general population of drivers.