It's an Apple supplier, not Apple. Besides, what does it matter that it's a trillion dollar company? It implies that if say 1 million small companies worth 1 million, would fare better in forcing a large supplier like Windsor or a large number of smaller suppliers, to respect India's local labour laws vis-a-vis their employees. That's a ridiculous assumption I think. If anything I trust that Apple's market power will force Wistron to pay out its workers according to the terms they agreed, much quicker than if Apple was, say, a small-time no-name company.
It's entirely right to be outraged about this, don't get me wrong. But I don't see the cause being related to Apple being a trillion dollar company. Nor do I see Apple screwing people over.
Tons of small and large companies in India screw with local labour laws all the time. If anything I'd expect that Apple suppliers would do so less on a per-worker basis. That's an assumption I'd like to see tested. The current system (courts or trial-by-media) will likely work for Apple holding its suppliers accountable. For a small company? Not so much.