I believe that they contribute to understanding, because human minds are wired to engage with stories. If your chemistry teacher was worth their salt, they’d teach you Gay-Lussac’s law by telling you about how, when the hot air balloon was first invented, Gay-Lussac was seen as mad by all of the older scientists for wanting to go up in one. Well, not only did he nearly die making measurements, he also showed that, at higher altitudes, there was lower pressure and lower temperature. Then, your chemistry teacher should pull out a spray-can of keyboard cleaner, invert it, spray the liquid into a beaker, and let everyone feel the adiabatic temperature depression from expansion.