self-importance

Self-Importance

noun

1
: an exaggerated estimate of one's own importance : SELF-CONCEIT
2
: arrogant or pompous behavior

Your Tech Wizard Friend has been in situations like this and you do not want to be her

Ego is that toxic force that makes teamwork, empathy, vulnerability and artistry impossible. Source: 37 Quotes On Fighting Ego, Building Character And Developing Strength & Humility