That's only one of several meanings of "jealousy". Excerpted from the OED: > 3. Solicitude or anxiety for the preservation or well-being of something; vigilan

That's only one of several meanings of "jealousy". Excerpted from the OED: > 3. Solicitude or anxiety for the preservation or well-being of something; vigilance in guarding a possession from loss or damage. > 4. The state of mind arising from the suspicion, apprehension, or knowledge of rivalry: > b. in respect of success or advantage: Fear of losing some good through the rivalry of another; resentment or ill-will towards another on account of advantage or superiority, possible or actual, on his part; envy, grudge. You're focusing on definition (3), but ignoring other aspects found in (4.b).