This is the right inference.
Brutus decides to join the conspiracy against Caesar because he fears that Caesar will become ruthless once he has absolute power.
Explanation:
This is one of the most poignant passages in the book that reflect on the nature of power.
IT is never known if Caesar will have or will not have become something along the lines of what Brutus says he would here but one can clearly understand why he would think that could be.
Brutus means that absolute power can change a person beyond what they ever wanted to be and hence it is dangerous.
This is why he decides t kill Caesar.
The purpose could be in rhyme is tells you every school should wear uniform or how bad ways and good ways to tell you about uniforms . I hope this answer is useful if its not sorry ...