Sure thing! Proper education gives you more opportunities but we know a lot of examples of extraordinary individuals that prove one can become successful without education.
However, without a master's degree you should be a broad minded person with a strive to become more knowledgeable.
i think it depends on your future aspirations. if you want to work in startups, founder, or tech related field, hands on experience and understanding of solving customer problems is more important than masters. i guess if you are interested in building something, masters or even a degree is not necessary. but if you want to work in established industries such as Finance, manufacturing, CFO etc then it is necessary.
Agreed. It depends a lot on what you are going to be and the field you want to pursue.