Final answer:
Increased capillary permeability and leakage of plasma proteins into the interstitial fluid during the inflammatory process are desirable because they facilitate wound healing and limit the spread of pathogens.
Step-by-step explanation:
Inflammation is a natural immune response to injury or infection. When capillary permeability increases and plasma proteins leak into the interstitial fluid, it is part of the inflammatory process. This is desirable because it allows for the entry of clotting factors and tissue-repair proteins, which are important for wound healing. Additionally, the leakage of fluid into the interstitial space helps to isolate the site of inflammation and limit the spread of pathogens.