Good to read your great points. I add something here:
1. vision
2. outstanding managerial ability (leadership, teamwork,
3. interpersonal skills
4. risk-taking spirit
5. determination / motivation /self-discipline...
6. analytical ability
7. the value system that may shape others and the surroundings.
The admission officers are always trying to discover these qualities, from both writing ability /esssys, oral english ( interview and TOEFL) and the impressive stories.