He was named the league's 'most valuable player'. [=the player who contributes the most to his team's success]
Clean air is a 'valuable' natural resource that needs to be protected.
A lot of 'valuable' advice/information can be found in this book.
(..) Katarina Jones. Oh. Sorry, Dr. Railly. I'm afraid your timing couldn't be any worse. Virologists are a vanishing and highly valuable commodity. Hence some of the measures we've had to implement. - What measures? - Measures necessary for the (..)2016 TvShow: 12 Monkeys Title: Lullaby Season: 2 Episode 8