It's the only way to view value. At best you can go with a perspectivist approach of "Yeah there might be things that are more valuable than others, but no human has the knowledge how that value is to be calculated, so you can at best kind of tell but not really", because there is no objective basis on which to place the word "value" because "value" by definiton makes sense only subjectively. Granted, you can tell in critical situations what is more worth at the current moment, if you are starving obviously food is worth more to you, but if you are full then it's not really worth that much anymore. Our needs and likes change constantly and humans are so individualistic by nature **by which I mean, we are extremely sensitive to environmental factors, by which we individualize ourselves a lot*, that there is literally no way to create a common idea of value for everyone.