And you do that by developing, building, and marketing, a tablet for toddlers?
I don't think any of what you say makes sense, if you think about it for even a little bit:
1. Even an individual at the top of capitalism doesn't have the right kind of influence to "replace or reform it."
2. Even if one could amass that kind of influence for that goal, the path to get there through "winning at capitalism" would probably corrupt the person before they had any influence to wield.
3. And even if you could get that high without being corrupted, there's no guarantee. Most of the people trying will end the game accomplishing nothing better slinging cancer-sticks and brain-rot for babies.
4. The actual path towards fixing it may not be an "only I can fix it" collaborationist arrogance. It could be letting it get worse and putting your efforts into highlighting those contradictions to motivate more robust collective action.
5. etc.