Examine the logical coherence between the following societal scenarios and principles of social justice:
1. Evidence 1: A corporation pays its chief engineer significantly more than its entry-level clerks based on their differing expertise and output. Inference 1: This compensation structure embodies the principle of proportionate justice.
2. Evidence 2: A university lowers the physical stamina requirement for physically disabled candidates during admissions. Inference 2: This policy fundamentally contradicts the constitutional ideal of treating equals equally.
3. Evidence 3: A judge sentences offenders strictly based on the severity of their crimes, ignoring their caste and gender. Inference 3: This action operationalizes the mandate to give due and equal consideration to all individuals.