Butterfly away scandals like BW stocks inflation, Jueteng kickback acceptance, and owning several bank accounts under different names would have assured Joseph Estrada's survival as president until 2004 and would have achieved some of his pet reforms like removing constitutional restrictions on foreign equity ownership and in fact in OTL, it nearly achieved had Cory Aquino and the CBCP remain silent or fully support on that issue as there were already a consensus among economists and politicians to make constitutional reforms on economic provisions.
Estrada's economic team led by Benjamin Diokno, Jose Pardo, Rafael Buenaventura, and Leonor Briones was more market fundamentalist than the succeeding Arroyo one which was composed by mixed economic fundamentalists and populists like Mar Roxas (served under Estrada and Aquino II too), Gary Teves, Cesar Purisima (later serves as Finance Secretary under current Aquino II administration), Jose Isidro Camacho, Romulo Neri, and Amado Tetangco and Estrada's economic team was so gaga on constitutional reform on economic provisions while the Arroyo's one was silenced by larger political team which was mostly protectionist particularly Rigoberto Tiglao and that's the reason on why PGMA had never made removing constitutional restrictions on foreign investments as one of her priority though it was included in the proposal to revise the constitution by the Consultative Commission led by Jose Abueva in 2005.
Let go back with the OP's topic, another POD scenario, had the impeachment trial not been interrupted by prosecutors led by Loren Legarda and let the second envelope be opened, Joseph Estrada would have been acquitted but would be unpopular throughout his remaining term like his successor after Hello Garci scandal and certainly, his preferred successor that time, Edgardo Angara would be defeated by Gloria Macapagal-Arroyo, Raul Roco, or Renato de Villa with a convincing margin unlike in OTL and would assure political legitimacy for Erap's successor unlike PGMA in OTL throughout her entire presidency.