4 ideas
At each stage, both the terms of her marriage and the fate of the land are settled by men: husbands, kin and elders. Her salary and education do not change who has the final say, so her life is a test case of whether individual attainment can override kinship rules about property and authority.
A woman can earn her own wage through professional work and still have no say over marriage and land. Those decisions are made through kinship and customary channels that do not recognize what she earns. Earning money and holding decision rights are separate, so economic independence alone leaves her domestic and property position largely unchanged.
Land can pass through the maternal line while the right to decide what happens to it stays with male relatives and elders. Because of this split, a daughter may see the land as hers by descent but still has to go through men to claim, keep or use it. Her claim is real in feeling and memory but weak in any forum that can enforce it.
Treat a woman's marriage and her land claim as two sides of the same arrangement, not as separate private and economic problems. The same group of men decides both, so pressure in one area becomes leverage in the other. Under this lens, a fight over land shows up as a fight over the marriage, and the reverse.