benefit

https://doi.org/10.1351/goldbook.14467
Advantage to, or improvement in condition of, an individual, a population, a species, an assemblage, a community, or an ecosystem.
Note: For risk/benefit comparisons, the probability of benefit is the appropriate comparator.
Source:
PAC, 2009, 81, 829. (Glossary of terms used in ecotoxicology (IUPAC Recommendations 2009)) on page 843 [Terms] [Paper]