Often there is a negative connotation associated with the concept of ego. Egotistical people are regarded as selfish, caring only about themselves. Rarely is the value of the ego ever mentioned. Like most things in excess, it is frequently a dangerous thing.
On the other hand, having too little ego may hold you back from overcoming your limits. You may be too content with letting other people take position instead of you. Rather than pushing forward for change in yourself to be the best you can be, taking all of that energy to better yourself, you remain in the same position.
A frail ego can hold you back from being motivated to achieve goals or strive for success. Ego can give a sense of drive and determination, pushing an individual to overcome challenges and achieve ambitions.
A lack of ego can lead to a deficit in personal identity. Without an ego, you may have a weaker sense of self and who you are as a person, who you aspire to be.
The ego is a necessary part of us when it is balanced. We should aspire to this balance: humility and pleasantness, but resolute in yourself. Do not be fooled by common apathy that expects us to roll over. Do not let yourself fall to the level where you would not raise your sword and fight.