The Vaishyas were those whose natures were predominantly
rājasic
with a mixture of
tamo guṇa
. They were thus inclined toward producing and possessing economic wealth through business and agriculture. They sustained the economy of the nation and created jobs for the other classes. They were also expected to undertake charitable projects to share their wealth with the deprived sections of society.
The Shudras were those who possessed
tāmasic
natures. They were not inclined toward scholarship, administration, or commercial enterprise. The best way for their progress was to serve society according to their calling. Artisans, technicians, job-workers, tailors, craftsmen, barbers, etc. were included in this class.