I would say yes, the goals and objectives of the constitution are still relevant today. When the constitution says, "Establish Justice", it is implying they want to set up a legal system fair to all, which indeed is very important today. It also ensures domestic tranquility, which protects us all from unlawful acts. Lastly, it provides us common defense, which is protection from other countries
Connecting past and present helps you see how humans have chosen to deal with conflict, which can lead to war, political debate, neighborhood riots, discrimination, etc. But also linking past and present helps us see how humans have solved any problems they have come across. Whether it be an economic issue, something that effects many people, or a personal issue.
answer: no, not really.
the religion's founder, Buddha, is considered an extraordinary man, but not a god. the word Buddha means “enlightened.” the path to enlightenment is attained by utilizing morality, meditation and wisdom.
Never think that the end will be the end.