In terms of the Indigenous community they should have equal opportunities to express their views and have their concerns be addressed in policy making especially related to environmental issues. This could be done by setting aside a select number of positions of higher authority to Indigenous people.
I don't think those with an immense amount of wealth should feel obligated to donate to those who are of a lower social status/underrepresented, but it should be appreciated when they do donate their wealth/resources to the public. People who are underrepresented and in need of financial aid are not necessarily suffering only because they don't have money, but because social and government systems are some of the main contributors to their issues regarding inequality. Just money cannot solve their problems. Instead of billionaires purely just giving resources and money to the less represented people, they could continue focusing on creating new technologies/inventions for the development of humans, and it is the government that needs to focus on providing justice and creating policies to remove the injustices in society.
A law to diminish planned obsolescence could be to have technological products have an expected lifespan of at least a certain amount of years so the products can be used longer. Another law could be to only allow companies to release new products after a certain length of time because having too many new products come out in a short amount of time can cause people to upgrade their devices more often than needed.