there are plenty of such people

with great prospects for the future; well worth doing

to be able to perform great deeds or make a significant impact

bringing great benefits; extremely useful, helpful, or of great service

there is more to a situation than meets the eye; containing hidden implications, complications, or a deeper subtext

to stand a good chance; to have great hopes; to be promising

to involve significant depth or complexity; to require a great deal of specialized knowledge; to be a real science or a fine art