This study examined the intersecting roles of education quality, personal and institutional discipline, and the transformative deployment of Artificial Intelligence (AI) as coordinated levers for Uganda's socioeconomic development in the 21st century. Drawing on survey data collected from 1,247 respondents across twelve Ugandan universities, secondary schools, and public sector institutions, the study employed Structural Equation Modelling (SEM) and multiple ordinary least squares (OLS) regression to test theoretically derived hypotheses regarding the relationships among educational quality indices, discipline indicators, AI readiness scores, graduate employability outcomes, and national development proxy measures. Results indicated that educational quality (β = 0.47, p < .001) and discipline culture (β = 0.38, p < .001) were the strongest direct predictors of graduate employability, while AI readiness exerted a significant indirect effect on development outcomes mediated through educational quality (β = 0.29, p < .001). The structural model demonstrated acceptable fit (CFI = 0.96, RMSEA = 0.048, SRMR = 0.052), confirming that the three constructs operated as a coherent system rather than independent variables. Policy implications were discussed with reference to Uganda Vision 2040 and the Third National Development Plan (NDPIII). The study concluded that Uganda's most strategic investment for sustained 21st-century development lay in simultaneous, coordinated reform across all three domains education, discipline, and AI and that siloed intervention in any single domain produced diminishing marginal returns.