> By pillaging and conquering nations that have abundant resources through violence and coercion

That's pretty much backwards. The industrial revolution was the first time in human history where people could get rich on a very large scale via some way other than pillage and conquest. If you think "capitalism" started in the late 18th century and is essentially coterminous with industry (which is quite nonsensical since you had forms of capital as far back as ancient farming societies, but that's the way many scholars choose to use the term) that's exactly what let us choose something that was not plunder and conquest.