In cities like Delhi, good electricians, plumbers, welders can make $1k+ a month - most of it tax free since they usually work in cash.
Yet, they will never buy any safety equipment for themselves. I’ve seen welders use cheap $5 sunglasses instead of buying protective visors.
There are new apartments coming up in my area, each of which is priced north of $500,000. Yet the laborers working on them don’t have even good quality plastic buckets or wheelbarrows to haul stuff around - they make do with burlap sacks and weave baskets.